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{{Other uses}}{{Use American English|date=February 2019}}{{short description|Sweet food made by bees mostly using nectar from flowers}}{{Use dmy dates|date=February 2016}}{{multiple image| align = right| direction = vertical| width = 250| image1 = Runny hunny.jpg| caption1 = A jar of honey with a honey dipper and an American biscuit| image2 = Stalls on the footpath up to Bachkovo Monastery 01.jpg| caption2 = Honey in a Bulgarian market}}Honey is a sweet, viscous food substance made by bees and some related insects.JOURNAL, Crane E, Honey from honeybees and other insects, Ethology Ecology & Evolution, 3, sup1, 100–105, 1990, 10.1080/03949370.1991.10721919, Eva Crane, Bees produce honey from the sugary secretions of plants (floral nectar) or from secretions of other insects (such as honeydew), by regurgitation, enzymatic activity, and water evaporation. Bees store honey in wax structures called honeycombs.BOOK, Crane, E., Walker, P., & Day, R., Directory of important world honey sources, International Bee Research Association, 978-0860981411, 1984, The variety of honey produced by honey bees (the genus Apis) is the best-known, due to its worldwide commercial production and human consumption.BOOK, Crane, Ethel Eva, The World History of Beekeeping and Honey Hunting, Routledge, 9781136746703, 1999, Honey is collected from wild bee colonies, or from hives of domesticated bees, a practice known as beekeeping or apiculture.Honey gets its sweetness from the monosaccharides fructose and glucose, and has about the same relative sweetness as sucrose (table sugar).National Honey Board. "Carbohydrates and the Sweetness of Honey" {{Webarchive|url=https://web.archive.org/web/20110701123525weblink |date=1 July 2011 }}. Last accessed 1 June 2012.Oregon State University weblink" title="web.archive.org/web/20121101092211weblink">"What is the relative sweetness of different sugars and sugar substitutes?". Retrieved 1 June 2012. It has attractive chemical properties for baking and a distinctive flavor when used as a sweetener. Most microorganisms do not grow in honey, so sealed honey does not spoil, even after thousands of years.NEWS,weblink The Science Behind Honey's Eternal Shelf Life, Geiling, Natasha, 22 August 2013, Smithsonian (magazine), Smithsonian, September 9, 2019, BOOK, Prescott, Lansing, Harley, John P., Klein, Donald A., Microbiology, WCB/McGraw-Hill,weblink Boston, 1999, 978-0-697-35439-6, One tablespoonful (15 ml) of honey provides 46 calories (kcal) of energy. Honey is regarded as safe when not taken in excessive amounts.Honey use and production have a long and varied history as an ancient activity. Several cave paintings in Cuevas de la Araña in Spain depict humans foraging for honey at least 8,000 years ago.{{TOC limit|3}}

Formation

File:Bee on -calyx 935.jpg|thumb|A honey bee on calyx of goldenrodgoldenrodFile:Thermal Image of a Honey Bee and a fly on a Dandelion.jpg|thumb|Thermal image of a honey bee (center) next to a fly (bottom) on a (dandelion]]: The bee emits a large amount of body heat, especially where the wings attach.)Honey is produced by bees collecting nectar for use as sugars consumed to support metabolism of muscle activity during foraging or to be stored as a long-term food supply.JOURNAL, Proc Natl Acad Sci U S A, 1996, 93, 22, 12616–20, Energy metabolism, enzymatic flux capacities, and metabolic flux rates in flying honeybees, Suarez RK, Lighton JR, Joos B, Roberts SP, Harrison JF, 8901631, 38041, 10.1073/pnas.93.22.12616, 1996PNAS...9312616S, During foraging, bees access part of the nectar collected to support metabolic activity of flight muscles, with the majority of collected nectar destined for regurgitation, digestion, and storage as honey.WEB,weblink How bees make honey is complex process, The Columbus Dispatch, Binkley D, 31 August 2014, 17 November 2015, In cold weather or when other food sources are scarce, adult and larval bees use stored honey as food.WEB,weblink Honey and Bees, 2015-11-17, bot: unknown,weblink" title="web.archive.org/web/20100305094736weblink">weblink 5 March 2010, dmy-all, National Honey BoardBy contriving for bee swarms to nest in human-made hives, people have been able to semidomesticate the insects and harvest excess honey. In the hive or in a wild nest, the three types of bees are:
  • a single female queen bee
  • a seasonally variable number of male drone bees to fertilize new queens
  • 20,000 to 40,000 female worker beesWEB, Whitmyre, Val,weblink The Plight of the Honeybees, University of California, 14 April 2007,weblink" title="web.archive.org/web/20070304202354weblink">weblink 4 March 2007,
Leaving the hive, a foraging bee collects sugar-rich flower nectar, sucking it through its proboscis and placing it in its proventriculus (honey stomach or crop), which lies just dorsal to its food stomach. The honey stomach holds about 40 mg of nectar, or roughly 50% of the bee's unloaded weight, which can require over a thousand flowers and more than an hour to fill. The nectar generally begins with a water content of 70 to 80%.Beekeeping: Everything You Need to Know to Start Your First Beehive by Joachim Petterson -- Weldonowen 2015 Page 57 Salivary enzymes and proteins from the bee's hypopharyngeal gland are added to the nectar to begin breaking down the sugars, raising the water content slightly. The forager bees then return to the hive, where they regurgitate and transfer nectar to the hive bees. The hive bees then use their honey stomachs to ingest and regurgitate the nectar, forming bubbles between their mandibles repeatedly until it is partially digested. The bubbles create a large surface area per volume and a portion of the water is removed through evaporation.Honey Bee Biology and Beekeeping by Dewey Maurice Caron, Lawrence John Connor -- Wicwas Press 2013 Page 214WEB, Standifer LN,weblink Honey Bee Nutrition And Supplemental Feeding, Excerpted from "Beekeeping in the United States", 14 April 2007, Bee digestive enzymes hydrolyze sucrose to a mixture of glucose and fructose, and break down other starches and proteins, increasing the acidity.JOURNAL, 3492327, 2012, Rossano R, Larocca M, Polito T, Perna AM, Padula MC, Martelli G, Riccio P, What Are the Proteolytic Enzymes of Honey and What They do Tell Us? A Fingerprint Analysis by 2-D Zymography of Unifloral Honeys, PLoS ONE, 7, 11, e49164, 23145107, 10.1371/journal.pone.0049164, 2012PLoSO...749164R, The bees work together as a group with the regurgitation and digestion for as long as 20 minutes, passing the nectar from one bee to the next, until the product reaches the honeycombs in storage quality. It is then placed in honeycomb cells and left unsealed while still high in water content (about 50 to 70%) and natural yeasts which, unchecked, would cause the sugars in the newly formed honey to ferment.The BBKA Guide to Beekeeping, Second Edition by Ivor Davis, Roger Cullum-Kenyon -- Bloomsbury Publishing 2015 Page 173-174Beekeeping as a Business by Richard Jones -- Commonwealth Secratariat 1999 Page 49 Bees are among the few insects that can generate large amounts of body heat, and the hive bees constantly regulate the hive temperature, either heating with their bodies or cooling with water evaporation, to maintain a fairly constant temperature of about {{convert|35|C|F}} in the honey-storage areas. The process continues as hive bees flutter their wings constantly to circulate air and evaporate water from the honey to a content around 18%, raising the sugar concentration beyond the saturation point and preventing fermentation. The bees then cap the cells with wax to seal them. As removed from the hive by a beekeeper, honey has a long shelf life and will not ferment if properly sealed.A number of wasp species such as Brachygastra lecheguana and Brachygastra mellifica, which are found in South and Central America, are known to feed on nectar and produce honey.JOURNAL, The Nearctic social wasps of the subfamily polybiinae (Hymenoptera; Vespidae), Bequaert, J.Q., 1932, Entomologica Americana, Some wasps, such as Polistes versicolor, consume honey, alternating between feeding on pollen in the middle of their lifecycles and feeding on honey, which can better provide for their energy needs.JOURNAL, Britto, Fábio Barros, Flávio Henrique, Caetano, Morphological Features and Occurrence of Degenerative Characteristics in the Hypopharyngeal Glands of the Paper Wasp Polistes versicolor (Olivier) (Hymenoptera: Vespidae), Micron, 37, 8, 2006, 742–47, 10.1016/j.micron.2006.03.002, 16632372,

Production

Collection

(File:Sealed Honey in frame.JPG|thumb|Sealed frame of honey)(File:Extractor Beekeeping.jpg|thumb|right|Extraction from a honeycomb)(File:Filtering of honey.jpg|thumb|upright|Filtering from a honeycomb)Honey is collected from wild bee colonies or from domesticated beehives. On average, a hive will produce about {{convert|65|lb|kg}} of honey per year.WEB,weblink How honey is made, National Honey Board (NHB), 2018, 29 June 2018, Wild bee nests are sometimes located by following a honeyguide bird.To safely collect honey from a hive, beekeepers typically pacify the bees using a bee smoker. The smoke triggers a feeding instinct (an attempt to save the resources of the hive from a possible fire), making them less aggressive, and obscures the pheromones the bees use to communicate. The honeycomb is removed from the hive and the honey may be extracted from it either by crushing or by using a honey extractor. The honey is then usually filtered to remove beeswax and other debris.Before the invention of removable frames, bee colonies were often sacrificed to conduct the harvest. The harvester would take all the available honey and replace the entire colony the next spring. Since the invention of removable frames, the principles of husbandry led most beekeepers to ensure that their bees have enough stores to survive the winter, either by leaving some honey in the beehive or by providing the colony with a honey substitute such as sugar water or crystalline sugar (often in the form of a "candyboard"). The amount of food necessary to survive the winter depends on the variety of bees and on the length and severity of local winters.Many animal species are attracted to wild or domestic sources of honey.BOOK, Animals that eat nectar and honey, Alice L. Hopf, Alice Lightner Hopf, 1979, Holiday House Incorporated,weblink 9780823403387, 28 May 2016,

Preservation

Because of its composition and chemical properties, honey is suitable for long-term storage, and is easily assimilated even after long preservation. Honey, and objects immersed in honey, have been preserved for centuries."The History of the Origin and Development of Museums". Dr. M. A. Hagen. The American naturalist, Volume 10. 1876.1894. The Mummy: A Handbook of Egyptian Funerary Archaeology. 2nd ed. Cambridge: Cambridge University Press. (Reprinted New York: Dover Publications, 1989) The key to preservation is limiting access to humidity. In its cured state, honey has a sufficiently high sugar content to inhibit fermentation. If exposed to moist air, its hydrophilic properties pull moisture into the honey, eventually diluting it to the point that fermentation can begin.Long shelf life of honey is attributed to an enzyme found in the stomach of bees. The bees mix glucose oxidase with expelled nectar they previously consumed, which then creates two byproducts: gluconic acid and hydrogen peroxide, partially responsible for honey's acidity and ability to suppress bacterial growth.

Adulteration

Honey is sometimes adulterated by the addition of other sugars, syrups, or compounds to change its flavor or viscosity, reduce cost, or increase the fructose content to stave off crystallization. The practice was common dating back to ancient times, when honey was sometimes blended with plant syrups such as maple, birch, or sorghum and sold to customers as pure honey. Sometimes crystallized honey was mixed with flour or other fillers, hiding the adulteration from buyers until the honey was liquefied. In modern times the most common adulterant became clear, almost-flavorless corn syrup; the adulterated mixture can be very difficult to distinguish from pure honey.The Hive: The Story of the Honeybee and Us By Bee Wilson --St. Martins Press 2004 Page 167According to the Codex Alimentarius of the United Nations, any product labeled as "honey" or "pure honey" must be a wholly natural product, although labeling laws differ between countries.BOOK, 10.1007/978-1-4613-1119-5_8, Food Authentication, 259–303, 1996, Molan, P. C., 978-1-4612-8426-0, Authenticity of honey, In the United States, according to the National Honey Board (NHB;WEB, Definition of Honey and Honey Products,weblink National Honey Board, 22 June 2018, 15 June 1996, supervised by the United States Department of Agriculture),WEB, About The NHB, National Honey Board,weblink 6 September 2019, WEB, National Honey Board,weblink U.S. Agricultural Marketing Service (AMS), 22 June 2018, 2018, "honey stipulates a pure product that does not allow for the addition of any other substance... this includes, but is not limited to, water or other sweeteners".WEB,weblink Definition of honey and honey products, National Honey Board, 15 June 1996, 7 January 2018, Isotope ratio mass spectrometry can be used to detect addition of corn syrup and cane sugar by the carbon isotopic signature. Addition of sugars originating from corn or sugar cane (C4 plants, unlike the plants used by bees, and also sugar beet, which are predominantly C3 plants) skews the isotopic ratio of sugars present in honey,BOOK, C3, C4: Mechanisms, and Cellular and Environmental Regulation, of Photosynthesis,weblink University of California Press, 469–, GGKEY:05LA62Q2TQJ, Edwards, G, Walker, D A, 1983, Sucrose synthesized by a C3 plant (e.g. sugar beet) can be distinguished from sucrose synthesized by a C4 plant (e.g. sugarcane) due to differences in δ values., but does not influence the isotopic ratio of proteins. In an unadulterated honey, the carbon isotopic ratios of sugars and proteins should match. Levels as low as 7% of addition can be detected.JOURNAL, Hivelights, 12, 1, 1999, Barry, Carla,weblinkweblink" title="web.archive.org/web/20080617102807weblink">weblink 17 June 2008, The detection of C4 sugars in honey,

Worldwide production

{| class="wikitable" style="float:right; clear:left; width:18em;"! colspan=2|Production of natural honey – 2017! style="background:#ddf; width:75%;"| Country! style="background:#ddf; width:25%;"| tonnes
|543,000
|114,471
|69,699
|66,968
|66,231
|65,678
|64,981
style="background:#ccc;"!World ||1,860,712
Source: FAOSTATHTTP://WWW.FAO.ORG/FAOSTAT/EN/#DATA/QL>PUBLISHER=FOOD AND AGRICULTURE ORGANIZATION (FAO) > TITLE=PRODUCTION QUANTITY OF HONEY (NATURAL) IN 2017, LIVESTOCK PRIMARY/WORLD REGIONS/PRODUCTION QUANTITY FROM PICKLISTSACCESSDATE=18 MARCH 2019,
In 2017 global production of honey was 1.9{{nbsp}}million tonnes, led by China with 29% of the world total (table). Other major producers were Turkey, Iran, United States, and Ukraine.

Modern uses

Food

Over its history as a food, the main uses of honey are in cooking, baking, desserts, as a spread on bread, as an addition to various beverages such as tea, and as a sweetener in some commercial beverages.

Fermentation

Possibly the world's oldest fermented beverage, dating from 9,000 years ago,Patrick E. McGovern, Juzhong Zhang, Jigen Tang, Zhiqing Zhang, Gretchen R. Hall, Robert A. Moreau, Alberto Nuñez, Eric D. Butrym, Michael P. Richards, Chen-shan Wang, Guangsheng Cheng, Zhijun Zhao and Changsui WangPNAS 2004 December, 101 (51) 17593-17598. "Fermented beverages of pre- and proto-historic China"weblink mead ("honey wine") is the alcoholic product made by adding yeast to honey-water must and fermenting it for weeks or months.JOURNAL, 10.1002/jib.239, Improvement of mead fermentation by honey-must supplementation, Journal of the Institute of Brewing, 121, 3, 405, 2015, Pereira, Ana Paula, Mendes-Ferreira, Ana, Estevinho, Leticia M., Mendes-Faia, Arlete,weblink 10198/16120, JOURNAL, 25153872, 6271869, 2014, Iglesias, A, Developments in the fermentation process and quality improvement strategies for mead production, Molecules, 19, 8, 12577–90, Pascoal, A, Choupina, A. B., Carvalho, C. A., Feás, X, Estevinho, L. M., 10.3390/molecules190812577, BOOK,weblink 21st Century Homestead: Beekeeping, Reuber, Brant, 2015-02-21, Lulu.com, 9781312937338, The yeast Saccharomyces cerevisiae is commonly used in modern mead production.Primary fermentation usually takes 28 to 56 days, after which the must is placed in a secondary fermentation vessel for 6 to 9 months of aging. Durations of primary and secondary fermentation producing satisfactory mead may vary considerably according to numerous factors, such as floral origin of the honey and its natural sugar and microorganism contents, must water percentage, pH, additives used, and strain of yeast, among others.MAGAZINE, Tierney, John, Making Mead in a Space-Age World,weblink The Atlantic, 20 June 2017, 21 October 2014, Although supplementation of the must with nitrogen, salt, or vitamins has been tested to improve mead qualities, no evidence suggests that adding nutrients reduced fermentation time or improved quality. Cell immobilization methods, however, proved effective for enhancing mead quality.Mead varieties include drinks called metheglin (with spices or herbs), melomel (with fruit juices, such as grape, specifically called pyment), hippocras (with cinnamon), and sack mead (high concentration of honey), many of which have been developed as commercial products numbering in the hundreds in the United States. Honey is also used to make mead beer, called "braggot".WEB, Braggot: The Best of Mead and Beer,weblink American Home Brewers Association, 19 June 2017, 2017,

Physical and chemical properties

(File:Crystallized honey with close-up.jpg|thumb|Crystallized honey: The inset shows a close-up of the honey, showing the individual glucose grains in the fructose mixture.)The physical properties of honey vary, depending on water content, the type of flora used to produce it (pasturage), temperature, and the proportion of the specific sugars it contains. Fresh honey is a supersaturated liquid, containing more sugar than the water can typically dissolve at ambient temperatures. At room temperature, honey is a supercooled liquid, in which the glucose precipitates into solid granules. This forms a semisolid solution of precipitated glucose crystals in a solution of fructose and other ingredients.The density of honey typically ranges between 1.38 and 1.45 kg/l at 20 Â°C .BOOK, Piotr Tomasik, Chemical and Functional Properties of Food Saccharides,weblink 20 October 2003, CRC Press, 978-0-203-49572-8, 74–,

Phase transitions

The melting point of crystallized honey is between {{convert|40|and|50|C|F}}, depending on its composition. Below this temperature, honey can be either in a metastable state, meaning that it will not crystallize until a seed crystal is added, or, more often, it is in a "labile" state, being saturated with enough sugars to crystallize spontaneously.Root, p. 355 The rate of crystallization is affected by many factors, but the primary factor is the ratio of the main sugars: fructose to glucose. Honeys that are supersaturated with a very high percentage of glucose, such as brassica honey, crystallize almost immediately after harvesting, while honeys with a low percentage of glucose, such as chestnut or tupelo honey, do not crystallize. Some types of honey may produce few but very large crystals, while others produce many small crystals.Tomasik, Piotr (2004) Chemical and functional properties of food saccharides, CRC Press, p. 74, {{ISBN|0-8493-1486-0}}Crystallization is also affected by water content, because a high percentage of water inhibits crystallization, as does a high dextrin content. Temperature also affects the rate of crystallization, with the fastest growth occurring between {{convert|13|and|17|C|F}}. Crystal nuclei (seeds) tend to form more readily if the honey is disturbed, by stirring, shaking, or agitating, rather than if left at rest. However, the nucleation of microscopic seed-crystals is greatest between {{convert|5|and|8|C|F}}. Therefore, larger but fewer crystals tend to form at higher temperatures, while smaller but more-numerous crystals usually form at lower temperatures. Below 5 Â°C, the honey will not crystallize, thus the original texture and flavor can be preserved indefinitely.Honey is a supercooled liquid when stored below its melting point, as is normal. At very low temperatures, honey does not freeze solid; rather its viscosity increases. Like most viscous liquids, the honey becomes thick and sluggish with decreasing temperature. At {{convert|-20|C|F}}, honey may appear or even feel solid, but it continues to flow at very low rates. Honey has a glass transition between {{convert|-42|and|-51|C|F}}. Below this temperature, honey enters a glassy state and becomes an amorphous solid (noncrystalline).JOURNAL, Kántor Z, Pitsi G, Thoen J, Glass Transition Temperature of Honey as a Function of Water Content As Determined by Differential Scanning Calorimetry, Journal of Agricultural and Food Chemistry, 47, 6, 2327–2330, 1999, 10794630, 10.1021/jf981070g, JOURNAL, Russell EV, Israeloff NE, Direct observation of molecular cooperativity near the glass transition, Nature, 408, 6813, 695–698, 2000, 11130066, 10.1038/35047037, cond-mat/0012245, 2000Natur.408..695V,

Rheology

(File:Honey-miel.jpg|thumb|right|Pouring raw honey. The sheet-like appearance of the flow is the result of high viscosity and low surface tension, contributing to the stickiness of honey.Physics of Continuous Matter, Second Edition: Exotic and Everyday Phenomena in the macroscopic world by B. Lautrup -- CRC Press 2011 Page 20weblink)The viscosity of honey is affected greatly by both temperature and water content. The higher the water percentage, the more easily honey flows. Above its melting point, however, water has little effect on viscosity. Aside from water content, the composition of most types of honey also has little effect on viscosity. At {{convert|25|C|F}}, honey with 14% water content generally has a viscosity around 400 poise, while a honey containing 20% water has a viscosity around 20 poise. Viscosity increases very slowly with moderate cooling; a honey containing 16% water, at {{convert|70|C|F}}, has a viscosity around 2 poise, while at {{convert|30|C|F}}, the viscosity is around 70 poise. With further cooling, the increase in viscosity is more rapid, reaching 600 poise at around {{convert|14|C|F}}.BOOK, Value-added products from beekeeping,weblink 1996, Food and Agriculture Organization of the United Nations, 978-92-5-103819-2, 7–8, 5 January 2016, WEB, Bogdanov, Stefan, 2009,weblink Physical Properties of Honey,weblink" title="web.archive.org/web/20090920094501weblink">weblink 20 September 2009, However, while honey is very viscous, it has rather low surface tension of 50–60 mJ/m2, thus the wettability of honey is on the same order as water, glycerin, or most other liquids.Wetting of Real Surfaces by Edward Yu. Bormashenko -- Walter D Gruyter 2013 Page 4 The high viscosity and wettability of honey lead to the phenomenon of stickiness, which is a time-dependent process in supercooled liquids between the glass-transition temperature (Tg) and the crystalline-melting temperature.Food Engineering Interfaces by José Miguel Aguilera, Ricardo Simpson, Jorge Welti-Chanes, Daniela Bermudez Aguirre, Gustavo Barbosa-Canovas -- Springer 2011 Page 479-487Most types of honey are Newtonian liquids, but a few types have non-Newtonian viscous properties. Honeys from heather or manuka display thixotropic properties. These types of honey enter a gel-like state when motionless, but liquefy when stirred.Krell, pp. 5–6

Electrical and optical properties

Because honey contains electrolytes, in the form of acids and minerals, it exhibits varying degrees of electrical conductivity. Measurements of the electrical conductivity are used to determine the quality of honey in terms of ash content.The effect honey has on light is useful for determining the type and quality. Variations in its water content alter its refractive index. Water content can easily be measured with a refractometer. Typically, the refractive index for honey ranges from 1.504 at 13% water content to 1.474 at 25%. Honey also has an effect on polarized light, in that it rotates the polarization plane. The fructose gives a negative rotation, while the glucose gives a positive one. The overall rotation can be used to measure the ratio of the mixture.Root, p. 348 Honey may vary in color between pale yellow and dark brown, but other bright colors may occasionally be found, depending on the source of the sugar harvested by the bees.NEWS,weblink Bees 'producing M&M's coloured honey', 4 October 2012, The Daily Telegraph, 30 December 2014,

Hygroscopy and fermentation

Honey has the ability to absorb moisture directly from the air, a phenomenon called hygroscopy. The amount of water the honey absorbs is dependent on the relative humidity of the air. Because honey contains yeast, this hygroscopic nature requires that honey be stored in sealed containers to prevent fermentation, which usually begins if the honey's water content rises much above 25%. Honey tends to absorb more water in this manner than the individual sugars allow on their own, which may be due to other ingredients it contains.Fermentation of honey usually occurs after crystallization, because without the glucose, the liquid portion of the honey primarily consists of a concentrated mixture of fructose, acids, and water, providing the yeast with enough of an increase in the water percentage for growth. Honey that is to be stored at room temperature for long periods of time is often pasteurized, to kill any yeast, by heating it above {{convert|70|C|F}}.

Thermal characteristics

(File:Creamed honey Maillard reaction after aging.jpg|thumb|Creamed honey: the honey on the left is fresh, and the honey on the right has been aged at room temperature for two years. The Maillard reaction produces considerable differences in the color and flavor of the aged honey, which remains edible.)Like all sugar compounds, honey caramelizes if heated sufficiently, becoming darker in color, and eventually burns. However, honey contains fructose, which caramelizes at lower temperatures than glucose.Hans-Dieter Belitz, Werner Grosch, Peter Schieberle Food chemistry Springer Verlag, Berlin-Heidelberg 2004 p. 884 {{ISBN|3-540-69933-3}} The temperature at which caramelization begins varies, depending on the composition, but is typically between {{convert|70|and|110|C|F}}. Honey also contains acids, which act as catalysts for caramelization. The specific types of acids and their amounts play a primary role in determining the exact temperature.ZdzisÅ‚aw E. Sikorski Chemical and functional properties of food components CRC Press 2007 p. 121 {{ISBN|0-8493-9675-1}} Of these acids, the amino acids, which occur in very small amounts, play an important role in the darkening of honey. The amino acids form darkened compounds called melanoidins, during a Maillard reaction. The Maillard reaction occurs slowly at room temperature, taking from a few to several months to show visible darkening, but speeds up dramatically with increasing temperatures. However, the reaction can also be slowed by storing the honey at colder temperatures.Root, p. 350Unlike many other liquids, honey has very poor thermal conductivity of 0.5 W/(mâ‹…K) at 13% water content (compared to 401 W/(mâ‹…K) of copper), taking a long time to reach thermal equilibrium.WEB,weblink Thermal Conductivity of common Materials and Gases, Due to its high kinematic viscosity honey does not transfer heat through momentum diffusion (convection) but rather through thermal diffusion (more like a solid), so melting crystallized honey can easily result in localized caramelization if the heat source is too hot or not evenly distributed. However, honey takes substantially longer to liquefy when just above the melting point than at elevated temperatures. Melting 20 kg of crystallized honey at {{convert|40|C|F}} can take up to 24 hours, while 50 kg may take twice as long. These times can be cut nearly in half by heating at {{convert|50|C|F}}; however, many of the minor substances in honey can be affected greatly by heating, changing the flavor, aroma, or other properties, so heating is usually done at the lowest temperature and for the shortest time possible.Krell, pp. 40–43

Acid content and flavor effects

The average pH of honey is 3.9, but can range from 3.4 to 6.1.WEB,weblink National Honey Board Food Technology/Product Research Program, pH and acids in honey, April 2006, 1 March 2012,weblink" title="web.archive.org/web/20110701123559weblink">weblink 1 July 2011, dead, dmy-all, Honey contains many kinds of acids, both organic and amino. However, the different types and their amounts vary considerably, depending on the type of honey. These acids may be aromatic or aliphatic (nonaromatic). The aliphatic acids contribute greatly to the flavor of honey by interacting with the flavors of other ingredients.Organic acids comprise most of the acids in honey, accounting for 0.17–1.17% of the mixture, with gluconic acid formed by the actions of glucose oxidase as the most prevalent. Minor amounts of other organic acids are present, consisting of formic, acetic, butyric, citric, lactic, malic, pyroglutamic, propionic, valeric, capronic, palmitic, and succinic, among many others.JOURNAL, 10.1021/jf00060a006, Wilkins, Alistair L., Lu, Yinrong, J. Agric. Food Chem., 1995, 43, 12, 3021–3025, Extractives from New Zealand Honeys. 5. Aliphatic Dicarboxylic Acids in New Zealand Rewarewa (Knightea excelsa) Honey,

Volatile organic compounds

Individual honeys from different plant sources contain over 100 volatile organic compounds (VOCs), which play a primary role in determining honey flavors and aromas.JOURNAL, Pattamayutanon, Praetinee, Angeli, Sergio, Thakeow, Prodpran, Abraham, John, Disayathanoowat, Terd, Chantawannakul, Panuwan, Rueppell, Olav, Volatile organic compounds of Thai honeys produced from several floral sources by different honey bee species, PLOS ONE, 12, 2, 2017-02-13, 1932-6203, 10.1371/journal.pone.0172099, e0172099, 28192487, 5305196, 2017PLoSO..1272099P, JOURNAL, Patrignani, Mariela, Fagúndez, Guillermina Andrea, Tananaki, Chrysoula, Thrasyvoulou, Andreas, Lupano, Cecilia Elena, Volatile compounds of Argentinean honeys: Correlation with floral and geographical origin, Food Chemistry, 246, 2018, 0308-8146, 10.1016/j.foodchem.2017.11.010, 32–40, 29291855, BOOK, Bee Products: Chemical and Biological Properties (volatiles, page 61--67, 114), José M Alvarez-Suarez, Springer International, 2017, 978-3319596891,weblink VOCs are carbon-based compounds that readily vaporize into the air, providing aroma, including the scents of flowers, essential oils, or ripening fruit. The typical chemical families of VOCs found in honey include hydrocarbons, aldehydes, alcohols, ketones, esters, acids, benzenes, furans, pyrans, norisoprenoids, and terpenes, among many others and their derivatives. The specific VOCs and their amounts vary considerably between different types of honey obtained by bees foraging on different plant sources. By example, when comparing the mixture of VOCs in different honeys in one review, longan honey had a higher amount of volatiles (48 VOCs), while sunflower honey had the lowest number of volatiles (8 VOCs).VOCs are primarily introduced into the honey from the nectar, where they are excreted by the flowers imparting individual scents. The specific types and concentrations of certain VOCs can be used to determine the type of flora used to produce monofloral honeys. The specific geography, soil composition and acidity used to grow the flora also have an effect on honey aroma properties, such as a "fruity" or "grassy" aroma from longan honey, or a "waxy" aroma from sunflower honey. Dominant VOCs in one study were linalool oxide, trans-linalool oxide, 2-phenylacetaldehyde, benzyl ethanol, isophorone, and methyl nonanoate.VOCs can also be introduced from the bodies of the bees, be produced by the enzymatic actions of digestion, or from chemical reactions that occur between different substances within the honey during storage, and therefore may change, increase, or decrease over long periods of time. VOCs may be produced, altered, or greatly affected by temperature and processing. Some VOCs are heat labile, and are destroyed at elevated temperatures, while others can be created during non-enzymatic reactions, such as the Maillard reaction. VOCs are responsible for nearly all of the aroma produced by a honey, which may be described as "sweet", "flowery", "citrus", "almond" or "rancid", among other terms. In addition, VOCs play a large role in determining the specific flavor of the honey, both through the aromas and flavor. VOCs from honeys in different geographic regions can be used as floral markers of those regions, and as markers of the bees that foraged the nectars.

Classification

{{more citations needed section|date=August 2015}}Honey is classified by its floral source, and divisions are made according to the packaging and processing used. Regional honeys are also identified. In the USA, honey is also graded on its color and optical density by USDA standards, graded on the Pfund scale, which ranges from 0 for "water white" honey to more than 114 for "dark amber" honey.Value-added products from beekeeping. Chapter 2. Fao.org. Retrieved on 14 April 2011.

Floral source

Generally, honey is classified by the floral source of the nectar from which it was made. Honeys can be from specific types of flower nectars or can be blended after collection. The pollen in honey is traceable to floral source and therefore region of origin. The rheological and melissopalynological properties of honey can be used to identify the major plant nectar source used in its production.WEB,weblink The Rheological & Mellisopalynological Properties of Honey, Minerva Scientific, 10 December 2012, If however, rheological measurements are made on a given sample it can be deduced that the sample is predominantly Manuka (Graph 2) or Kanuka (Graph 3) or a mixture of the two plant species,

Blended

Most commercially available honey is a blendBOOK,weblink Homebrewing For Dummies, Nachel, Marty, 2008-06-23, John Wiley & Sons, 9780470374160, of two or more honeys differing in floral source, color, flavor, density, or geographic origin.WEB,weblink Honey Varietals, National Honey Board, 2018, 25 June 2018, The color, flavor and even aroma of honey differs, depending on the nectar of flowers visited by the bees that made it. There are more than 300 unique types of honey available in the United States alone, each originating from a different floral source.,

Polyfloral

Polyfloral honey, also known as wildflower honey,WEB,weblink Honey Color and Flavor, National Honey Board, 3 February 2011, Wildflower honey is often used to describe honey from miscellaneous and undefined flower sources., is derived from the nectar of many types of flowers.WEB,weblink Varieties of honey: Polyfloral honey, The Honey Book, 10 November 2007, Honey that is from wild or commercialized honeybees that is derived from many types of flowers is a resulting polyfloral honey., The taste may vary from year to year, and the aroma and the flavor can be more or less intense, depending on which flowers are blooming.

Monofloral

Monofloral honey is made primarily from the nectar of one type of flower. Monofloral honeys have distinctive flavors and colors because of differences between their principal nectar sources.The Colours Of Honey. Mieliditalia.it. Retrieved on 6 February 2011. To produce monofloral honey, beekeepers keep beehives in an area where the bees have access, as far as possible, to only one type of flower. In practice a small proportion of any monofloral honey will be from other flower types.BOOK, 21st Century Homestead: Beekeeping,weblink Lulu.com, 21 February 2015, 9781312937338, en, Brant, Reuber, Typical examples of North American monofloral honeys are clover, orange blossom, blueberry, sage, tupelo, buckwheat, fireweed, mesquite, and sourwood. Some typical European examples include thyme, thistle, heather, acacia, dandelion, sunflower, lavender, honeysuckle, and varieties from lime and chestnut trees.{{citation needed|date=December 2012}} In North Africa (e.g. Egypt), examples include clover, cotton, and citrus (mainly orange blossoms).{{citation needed|date=December 2012}} The unique flora of Australia yields a number of distinctive honeys, with some of the most popular being yellow box, blue gum, ironbark, bush mallee, Tasmanian leatherwood, and macadamia.

Honeydew honey

Instead of taking nectar, bees can take honeydew, the sweet secretions of aphids or other plant sap-sucking insects. Honeydew honey is very dark brown in color, with a rich fragrance of stewed fruit or fig jam, and is not as sweet as nectar honeys. Germany's Black Forest is a well-known source of honeydew-based honeys, as well as some regions in Bulgaria, Tara (mountain) in Serbia, and Northern California in the United States. In Greece pine honey, a type of honeydew honey, constitutes 60–65% of honey production.JOURNAL, Gounari, Sofia, Studies on the phenology of Marchalina hellenica (gen.) (Hemiptera: coccoidea, margarodidae) in relation to honeydew flow, Journal of Apicultural Research, 45, 1, 8–12, 2006, 10.3896/IBRA.1.45.1.03, Honeydew honey is popular in some areas, but in other areas, beekeepers have difficulty selling the stronger-flavored product.BOOK,weblink The Honey Prescription: The Amazing Power of Honey as Medicine, Altman, Nathaniel, 2010-03-09, Inner Traditions / Bear & Co, 9781594773464, The production of honeydew honey has some complications and dangers. This honey has a much larger proportion of indigestibles than light floral honeys, thus causing dysentery to the bees,NEWS,weblink A Short Story About A Wintering Colony With Dysentery {{!, Bee Culture|date=2015-04-19|work=Bee Culture|access-date=2018-10-09}} resulting in the death of colonies in areas with cold winters. Good beekeeping management requires the removal of honeydew prior to winter in colder areas. Bees collecting this resource also have to be fed protein supplements, as honeydew lacks the protein-rich pollen accompaniment gathered from flowers.

Classification by packaging and processing

Generally, honey is bottled in its familiar liquid form, but it is sold in other forms, and can be subjected to a variety of processing methods.{{multiple image| align = right| direction = vertical| width = 200| image1 = Honey comb.jpg| caption1 = A honeycomb| image2 = Texas State Fair honey.jpg| caption2 = A variety of honey flavors and container sizes and styles from the 2008 Texas State Fair}}
  • Crystallized honey occurs when some of the glucose content has spontaneously crystallized from solution as the monohydrate. It is also called "granulated honey" or "candied honey". Honey that has crystallized (or commercially purchased crystallized) can be returned to a liquid state by warming.BOOK, Flottum, Kim, The Backyard Beekeeper: An Absolute Beginner's Guide to Keeping Bees in Your Yard and Garden,weblink 2010, Quarry Books, 978-1-61673-860-0, 170–, 5 January 2016,
  • Pasteurized honey has been heated in a pasteurization process which requires temperatures of {{convert|161|F|C}} or higher. Pasteurization destroys yeast cells. It also liquefies any microcrystals in the honey, which delays the onset of visible crystallization. However, excessive heat exposure also results in product deterioration, as it increases the level of hydroxymethylfurfural (HMF){{Citation needed|reason=Increases the level of something not even proven to be there? How about some citation of a scientifically and statistically relevant study proving both the existence of HMF in honey in any significant quantity AND its increase to significant or dangerous levels by heating? I.e. Onus probandi.|date=January 2014}} and reduces enzyme (e.g. diastase) activity. Heat also darkens the honey, and affects taste and fragrance.JOURNAL, Subramanian, R., Hebbar, H. Umesh, Rastogi, N. K., Processing of Honey: A Review, International Journal of Food Properties, 10, 127–143, 2007, 10.1080/10942910600981708,
  • Raw honey is as it exists in the beehive or as obtained by extraction, settling, or straining, without adding heat (although some honey that has been "minimally processed" is often labeled as raw honey).WEB,weblink Definition of Honey and Honey Products, National Honey Board, 15 June 1996,weblink" title="web.archive.org/web/20071203010606weblink">weblink 3 December 2007, Raw honey contains some pollen and may contain small particles of wax.
  • Strained honey has been passed through a mesh material to remove particulate materialBOOK,weblink Food Safety Management: Chapter 11. Honey, Confectionery and Bakery Products, Chaven, Suchart, 2013-11-01, Elsevier Inc. Chapters, 9780128056509, (pieces of wax, propolis, other defects) without removing pollen, minerals, or enzymes.
  • Filtered honey of any type has been filtered to the extent that all or most of the fine particles, pollen grains, air bubbles, or other materials normally found in suspension, have been removed.WEB, United States Standards for Grades of Extracted Honey,weblink U.S. Agricultural Marketing Service (AMS), 20 January 2012, The process typically heats honey to {{convert|150|–|170|F|C}} to more easily pass through the filter.BOOK, Damerow, Gail, The Backyard Homestead Guide to Raising Farm Animals: Choose the Best Breeds for Small-Space Farming, Produce Your Own Grass-Fed Meat, Gather Fresh Eggs, Collect Fresh Milk, Make Your Own Cheese, Keep Chickens, Turkeys, Ducks, Rabbits, Goats, Sheep, Pigs, Cattle, & Bees,weblink 2011, Storey Publishing, LLC, 978-1-60342-697-8, 167–, 5 January 2016, Filtered honey is very clear and will not crystallize as quickly, making it preferred by supermarkets.BOOK, First Regional Training Workshop for Beekeepers,weblink Bib. Orton IICA / CATIE, 55–, 1992, 5 January 2016, The most common method involves the addition of diatomaceous earth to honey that is heated to {{convert|140|F|C}} and passed through filter paper or canvas until a filter cake of diatomaceous earth builds up on the filter.WEB, Extracted Honey Grading Manual,weblink U.S. Agricultural Marketing Service (AMS), May 17, 2019,
  • Ultrasonicated honey has been processed by ultrasonication, a nonthermal processing alternative for honey. When honey is exposed to ultrasonication, most of the yeast cells are destroyed. Those cells that survive sonication generally lose their ability to grow, which reduces the rate of honey fermentation substantially. Ultrasonication also eliminates existing crystals and inhibits further crystallization in honey. Ultrasonically aided liquefaction can work at substantially lower temperatures around {{convert|95|F|C}} and can reduce liquefaction time to less than 30 seconds.Ultrasonic Honey Processing. Hielscher.com. Retrieved on 6 February 2011.
  • Creamed honey, also called whipped honey, spun honey, churned honey, honey fondant, and, in the UK, set honey, has been processed to control crystallization. Creamed honey contains a large number of small crystals, which prevent the formation of larger crystals that can occur in unprocessed honey. The processing also produces a honey with a smooth, spreadable consistency.BOOK, Sharma, Rajeev, Improve your Health! with Honey,weblink 2005, Diamond Pocket Books, 978-81-288-0920-0, 33–, 5 January 2016,
  • Dried honey has the moisture extracted from liquid honey to create completely solid, nonsticky granules. This process may or may not include the use of drying and anticaking agents.BOOK, Krell, Rainer, Value-added Products Froom Beekeeping,weblink 1996, Food & Agriculture Org., 978-92-5-103819-2, 25–, 5 January 2016, Dried honey is used in baked goods, and to garnish desserts.BOOK,weblink The Honey Book, Thacker, Emily, 2012-04-22, James Direct, Inc., 9781623970611,
  • Comb honey is still in the honeybees' wax comb. It is traditionally collected using standard wooden frames in honey supers. The frames are collected and the comb is cut out in chunks before packaging. As an alternative to this labor-intensive method, plastic rings or cartridges can be used that do not require manual cutting of the comb, and speed packaging. Comb honey harvested in the traditional manner is also referred to as "cut-comb honey".{{rp|13}}Honey Processing {{webarchive|url=https://web.archive.org/web/20090213235637weblink |date=13 February 2009 }}. Beeworks.com. Retrieved on 6 February 2011.
  • Chunk honey is packed in wide-mouthed containers; it consists of one or more pieces of comb honey immersed in extracted liquid honey.{{rp|13}}
  • Honey decoctions are made from honey or honey byproducts which have been dissolved in water, then reduced (usually by means of boiling). Other ingredients may then be added. (For example, abbamele has added citrus.) The resulting product may be similar to molasses.
  • Baker's honey is outside the normal specification for honey, due to a "foreign" taste or odor, or because it has begun to ferment or has been overheated. It is generally used as an ingredient in food processing. Additional requirements exist for labeling baker's honey, including that it may not be sold labeled simply as "honey".Honey Regulations 2003, UK Food Standards Agency. Section 2.5 (p 8), section 4.2 (pp 12-14).

Grading

{{See also|Food grading}}Countries have differing standards for grading honey. In the US, honey grading is performed voluntarily based upon USDA standards. USDA offers inspection and grading "as on-line (in-plant) or lot inspection...upon application, on a fee-for-service basis." Honey is graded based upon a number of factors, including water content, flavor and aroma, absence of defects, and clarity. Honey is also classified by color, though it is not a factor in the grading scale.WEB,weblink United States Standards for Grades of Extracted Honey, U.S. Agricultural Marketing Service (AMS), 2016-04-08, The honey grade scale is:{| class="wikitable"! Grade! Soluble solids! Flavor and aroma! Absence of defects! Clarity
! A| ≥ 81.4%| Good—"has a good, normal flavor and aroma for the predominant floral source or, when blended, a good flavor for the blend of floral sources and the honey is free from caramelized flavor or objectionable flavor caused by fermentation, smoke, chemicals, or other causes with the exception of the predominant floral source"| Practically free—"contains practically no defects that affect the appearance or edibility of the product"| Clear—"may contain air bubbles which do not materially affect the appearance of the product and may contain a trace of pollen grains or other finely divided particles of suspended material which do not affect the appearance of the product"
! B| ≥ 81.4%| Reasonably good—"has a reasonably good, normal flavor and aroma for the predominant floral source or, when blended, a reasonably good flavor for the blend of floral sources and the honey is practically free from caramelized flavor and is free from objectionable flavor caused by fermentation, smoke, chemicals, or other causes with the exception of the predominant floral source"| Reasonably free—"may contain defects which do not materially affect the appearance or edibility of the product"| Reasonably clear—"may contain air bubbles, pollen grains, or other finely divided particles of suspended material which do not materially affect the appearance of the product"
! C| ≥ 80.0%| Fairly good—"has a fairly good, normal flavor and aroma for the predominant floral source or, when blended, a fairly good flavor for the blend of floral sources and the honey is reasonably free from caramelized flavor and is free from objectionable flavor caused by fermentation, smoke, chemicals, or other causes with the exception of the predominant floral source"| Fairly free—"may contain defects which do not seriously affect the appearance or edibility of the product"| Fairly clear—"may contain air bubbles, pollen grains, or other finely divided particles of suspended material which do not seriously affect the appearance of the product"
! Substandard| Fails Grade C| Fails Grade C| Fails Grade C| Fails Grade C
India certifies honey grades based on additional factors, such as the Fiehe's test, and other empirical measurements.NOTIFICATION {{Webarchive|url=https://web.archive.org/web/20101213163011weblink |date=13 December 2010 }}, MINISTRY OF AGRICULTURE (Department of Agriculture and Co-operation) New Delhi, 24 December 2008

Indicators of quality

High-quality honey can be distinguished by fragrance, taste, and consistency. Ripe, freshly collected, high-quality honey at {{convert|20|°C|°F|abbr=on}} should flow from a knife in a straight stream, without breaking into separate drops.WEB, Bogdanov, Stefan, 2008,weblink Honey production, Bee Product Science,weblink" title="web.archive.org/web/20090305184128weblink">weblink 5 March 2009, After falling down, the honey should form a bead. The honey, when poured, should form small, temporary layers that disappear fairly quickly, indicating high viscosity. If not, it indicates honey with excessive water content of over 20%, not suitable for long-term preservation.JOURNAL, Allan, Matthew,weblink Basic Honey Processing, Beekeeping in a Nutshell, 5,weblink" title="web.archive.org/web/20010217104623weblink">weblink 17 February 2001, In jars, fresh honey should appear as a pure, consistent fluid, and should not set in layers. Within a few weeks to a few months of extraction, many varieties of honey crystallize into a cream-colored solid. Some varieties of honey, including tupelo, acacia, and sage, crystallize less regularly. Honey may be heated during bottling at temperatures of {{convert|40|–|49|C|F}} to delay or inhibit crystallization. Overheating is indicated by change in enzyme levels, for instance, diastase activity, which can be determined with the Schade or the Phadebas methods. A fluffy film on the surface of the honey (like a white foam), or marble-colored or white-spotted crystallization on a container's sides, is formed by air bubbles trapped during the bottling process.A 2008 Italian study determined that nuclear magnetic resonance spectroscopy can be used to distinguish between different honey types, and can be used to pinpoint the area where it was produced. Researchers were able to identify differences in acacia and polyfloral honeys by the differing proportions of fructose and sucrose, as well as differing levels of aromatic amino acids phenylalanine and tyrosine. This ability allows greater ease of selecting compatible stocks.JOURNAL, 10.1021/cen-v086n035.p043, Chemical & Engineering News, 2008, 86, Keeping Tabs on Honey, 43–44, 35,

Nutrition

{{nutritional value|name=Honey|kJ=1272|protein=0.3 g|fat=0 g|carbs=82.4 g|sugars=82.12 g|fiber=0.2 g|sodium_mg=4|potassium_mg=52|vitC_mg=0.5|riboflavin_mg=0.038|niacin_mg=0.121|pantothenic_mg=0.068|folate_ug=2|iron_mg=0.42|magnesium_mg=2|phosphorus_mg=4|zinc_mg=0.22|calcium_mg=6|vitB6_mg=0.024|water=17.10 g|note=Full Link to USDA Database entry}}One hundred grams of honey provide about 304 kilocalories of energy with no significant amounts of essential nutrients.WEB,weblink Full Report (All Nutrients): 19296, Honey, USDA National Nutrient Database, Agricultural Research Service, Release 28, 2015, 30 October 2015, Composed of 17% water and 82% carbohydrates, honey has low content of fat, dietary fiber, and protein.

Sugar profile

A mixture of sugars and other carbohydrates, honey is mainly fructose (about 38%) and glucose (about 32%), with remaining sugars including maltose, sucrose, and other complex carbohydrates. Its glycemic index ranges from 31 to 78, depending on the variety.Arcot, Jayashree and Brand-Miller, Jennie (March 2005) A Preliminary Assessment of the Glycemic Index of Honey. A report for the Rural Industries Research and Development Corporation. RIRDC Publication No 05/027. rirdc.infoservices.com.au The specific composition, color, aroma, and flavor of any batch of honey depend on the flowers foraged by bees that produced the honey.BOOK,weblink US Department of Agriculture, Farmers' Bulletin, No. 653, Hunt CL, Atwater HW, 7 April 1915, Honey and Its Uses in the Home, 2 April 2015, One 1980 study found that mixed floral honey from several United States regions typically contains:WEB,weblink Beesource Beekeeping: Honey Composition and Properties, Beesource.com, October 1980, 6 February 2011,
  • Fructose: 38.2%
  • Glucose: 31.3%
  • Maltose: 7.1%
  • Sucrose: 1.3%
  • Water: 17.2%
  • Higher sugars: 1.5%
  • Ash: 0.2%
  • Other/undetermined: 3.2%
A 2013 NMR spectroscopy study of 20 different honeys from Germany found that their sugar contents comprised:
  • Fructose: 28% to 41%
  • Glucose: 22% to 35%
The average ratio was 56% fructose to 44% glucose, but the ratios in the individual honeys ranged from a high of 64% fructose and 36% glucose (one type of flower honey; table 3 in reference) to a low of 50% fructose and 50% glucose (a different floral source). This NMR method was not able to quantify maltose, galactose, and the other minor sugars as compared to fructose and glucose.JOURNAL, Qualitative and Quantitative Control of Honeys Using NMR Spectroscopy and Chemometrics, ISRN Analytical Chemistry, 12 May 2013, 1–9, 2013, 10.1155/2013/825318, en, Marc, Ohmenhaeuser, Yulia B., Monakhova, Thomas, Kuballa, Dirk W., Lachenmeier,weblink

Medical

Wounds and burns

Honey is a popular folk treatment for burns and other skin injuries. Preliminary evidence suggests that it aids in the healing of partial thickness burns 4–5 days faster than other dressings, and moderate evidence suggests that post-operative infections treated with honey heal faster and with fewer adverse events than with antiseptic and gauze.JOURNAL, Honey as a topical treatment for wounds, Jull, Andrew B., Cullum, Nicky, Dumville, Jo C., Westby, Maggie J., Deshpande, Sohan, Walker, Natalie, 2015, Cochrane Database of Systematic Reviews, 3, CD005083, 25742878, 10.1002/14651858.cd005083.pub4, Honey appears to heal partial thickness burns more quickly than conventional treatment (which included polyurethane film, paraffin gauze, soframycin-impregnated gauze, sterile linen and leaving the burns exposed) and infected post-operative wounds more quickly than antiseptics and gauze., The evidence for the use of honey in various other wound treatments is of low quality, and firm conclusions cannot be drawn.JOURNAL, Majtan, J, Honey: an immunomodulator in wound healing, Wound Repair Regen., 2014, 22, 2 Mar–Apr, 187–192, 10.1111/wrr.12117, 24612472, Evidence does not support the use of honey-based products for the treatment of venous stasis ulcers or ingrown toenail.JOURNAL, O'Meara S, Al-Kurdi D, Ologun Y, Ovington LG, Martyn-St James M, Richardson R, Antibiotics and antiseptics for venous leg ulcers, Cochrane Database Syst Rev, 1, 1, CD003557, 2014, 24408354, 10.1002/14651858.CD003557.pub5, Systematic review, JOURNAL, Eekhof JA, Van Wijk B, Knuistingh Neven A, van der Wouden JC, Interventions for ingrowing toenails, Cochrane Database Syst Rev, 4, 4, CD001541, 2012, 22513901, 10.1002/14651858.CD001541.pub3, Systematic review, 1871/48564,weblink

Antibiotic

Components of honey under preliminary research for their potential antibacterial properties include methylglyoxal, hydrogen peroxide, and royalisin (also called defensin-1).JOURNAL, Methylglyoxal-induced modifications of significant honeybee proteinous components in manuka honey: Possible therapeutic implications, Fitoterapia, 1 June 2012, 671–677, 83, 4, 10.1016/j.fitote.2012.02.002, Juraj, Majtan, Jaroslav, Klaudiny, Jana, Bohova, Lenka, Kohutova, Maria, Dzurova, Maria, Sediva, Maria, Bartosova, Viktor, Majtan, 22366273, JOURNAL, 22095907, 2012, Kwakman, P. H, Antibacterial components of honey, IUBMB Life, 64, 1, 48–55, Zaat, S. A, 10.1002/iub.578,

Cough

For chronic and acute coughs, a Cochrane review found no strong evidence for or against the use of honey.JOURNAL, Mulholland S, Chang AB, Honey and lozenges for children with non-specific cough, Cochrane Database Syst Rev, 2, CD007523, 2009, 19370690, 10.1002/14651858.CD007523.pub2, Systematic review,weblink JOURNAL, Oduwole, Olabisi, Udoh, Ekong E., Oyo-Ita, Angela, Meremikwu, Martin M., 2018, Honey for acute cough in children, The Cochrane Database of Systematic Reviews, 4, CD007094, 10.1002/14651858.CD007094.pub5, 1469-493X, 29633783, 6513626, For treating children, the systematic review concluded with moderate to low evidence that honey probably helps more than no treatment, diphenhydramine, and placebo at giving relief from coughing. Honey does not appear to work better than dextromethorphan at relieving coughing in children.The UK Medicines and Healthcare Products Regulatory Agency recommends avoiding giving over-the-counter cough and common cold medication to children under six, and suggests "a homemade remedy containing honey and lemon is likely to be just as useful and safer to take", but warns that honey should not be given to babies because of the risk of infant botulism.WEB, NHS Choices, Cough, 18 June 2014, 20 June 2013,weblink The World Health Organization recommends honey as a treatment for coughs and sore throats, including for children, stating that no reason exists to believe it is less effective than a commercial remedy.JOURNAL, Cough and cold remedies for the treatment of acute respiratory infections in young children,weblink World Health Organization (WHO), 2001, WHO/FCH/CAH/01.02, 10665/66856, Organization, World Health, Honey is recommended by one Canadian physician for children over the age of one for the treatment of coughs, as it is deemed as effective as dextromethorphan and more effective than diphenhydramine.JOURNAL, Goldman, Ran D., Honey for treatment of cough in children, Canadian Family Physician, December 2014, 60, 12, 1107–1110, 25642485, 4264806,weblink Systematic review,

Battery ingestion

The use of honey has been recommended as a temporary intervention for known or suspected button cell battery ingestions to reduce the risk and severity of injury to the esophagus caused by the battery prior to its removal.WEB,weblink Button Battery Ingestion: Triage and Treatment Guideline, National Capital Poison Center, Washington, DC, June 2018, 2018-07-05, JOURNAL, Anfang, Rachel R., Jatana, Kris R., Linn, Rebecca L., Rhoades, Keith, Fry, Jared, Jacobs, Ian N., 2018-06-11, pH-neutralizing esophageal irrigations as a novel mitigation strategy for button battery injury, The Laryngoscope, 10.1002/lary.27312, 29889306, 0023-852X, 129, 1, 49–57,

Other

There is no evidence that honey is beneficial for treating cancer,WEB, Mayo Clinic, Honey, 24 September 2015, 1 November 2013,weblink although honey may be useful for controlling side effects of radiation therapy or chemotherapy used to treat cancer.JOURNAL, J Clin Nurs, 2008, 17, 19, 2604–23, 10.1111/j.1365-2702.2008.02304.x, 18808626,weblink A systematic review of honey uses and its potential value within oncology care, Bardy J, Slevin NJ, Mais KL, Molassiotis A, Consumption is sometimes advocated as a treatment for seasonal allergies due to pollen, but scientific evidence to support the claim is inconclusive.WEB,weblink Honey for Allergies, Dale Kiefer, 4 May 2012, Honey is generally considered ineffective for the treatment of allergic conjunctivitis.JOURNAL, Rudmik L, Hoy M, Schlosser RJ, Harvey RJ, Welch KC, Lund V, Smith TL, Topical therapies in the management of chronic rhinosinusitis: an evidence-based review with recommendations, Int Forum Allergy Rhinol, 3, 4, 281–98, April 2013, 10.1002/alr.21096, 23044832, Review, Although the majority of calories in honey is from fructose, honey does not cause increased weight gainJOURNAL, 19155427, 2008, Bogdanov, S, Honey for nutrition and health: A review, Journal of the American College of Nutrition, 27, 6, 677–89, Jurendic, T, Sieber, R, Gallmann, P, 10.1080/07315724.2008.10719745, and fructose by itself is not an independent factor for weight gain.JOURNAL, Sievenpiper JL, de Souza RJ, Mirrahimi A, Yu ME, Carleton AJ, Beyene J, Chiavaroli L, Di Buono M, Jenkins AL, Leiter LA, Wolever TM, Kendall CW, Jenkins DJ, Effect of Fructose on Body Weight in Controlled Feeding Trials: A Systematic Review and Meta-analysis, Ann Intern Med, 2012, 156, 4, 291–304, 22351714, 10.7326/0003-4819-156-4-201202210-00007,

Health hazards

Honey is generally safe when taken in typical food amounts, but it may have various, potential adverse effects or interactions in combination with excessive consumption, existing disease conditions, or drugs. Included among these are mild reactions to high intake, such as anxiety, insomnia, or hyperactivity in about 10% of children, according to one study. No symptoms of anxiety, insomnia, or hyperactivity were detected with honey consumption compared to placebo, according to another study. Honey consumption may interact adversely with existing allergies, high blood sugar levels (as in diabetes), or anticoagulants used to control bleeding, among other clinical conditions.People who have a weakened immune system may be at risk of bacterial or fungal infection from eating honey,BOOK, Prakash V, Martin-Belloso O, Keener L, Astley SB, Braun S, McMahon H, Lelieveld H, Regulating Safety of Traditional and Ethnic Foods,weblink 2015, Elsevier Science, 978-0-12-800620-7, 223, Safety of Honey, Grigoryan K, although there is no high-quality clinical evidence that this occurs commonly.

Botulism

Infants can develop botulism after consuming honey contaminated with Clostridium botulinum endospores.WEB,weblink Frequently Asked Questions, National Honey Board, 6 February 2011,weblink" title="web.archive.org/web/20100201094727weblink">weblink 1 February 2010, live, Infantile botulism shows geographical variation. In the UK, only six cases were reported between 1976 and 2006,WEB,weblink Report on Minimally Processed Infant Weaning Foods and the Risk of Infant Botulism, July 2006, Advisory Committee on the Microbiological Safety of Food, 9 January 2012,weblink" title="web.archive.org/web/20101019005426weblink">weblink 19 October 2010, yet the U.S. has much higher rates: 1.9 per 100,000 live births, 47.2% of which are in California.Botulism in the United States, 1899–1996, Handbook for Epidemiologists, Clinicians, and Laboratory Workers, Atlanta, GA. Centers for Disease Control and Prevention (1998) While the risk honey poses to infant health is small, taking the risk is not recommended until after one year of age, and then giving honey is considered safe.Infant Botulism and Honey. Edis.ifas.ufl.edu. Retrieved on 9 January 2012.

Toxic honey

File:Honey bee collecting nectar from toxic monkshood.png|thumb|A honey bee collecting nectar from (monkshood]] (Aconitum delphinifolium, or "wolf's bane"), an extremely toxic plant: The flowers are shaped in such a way that the bee must fit its entire body into the flower to reach the nectar.)Mad honey intoxication is a result of eating honey containing grayanotoxins.JOURNAL, Jansen, Suze A., Kleerekooper, Iris, Hofman, Zonne L. M., Kappen, Isabelle F. P. M., Stary-Weinzinger, Anna, van der Heyden, Marcel A. G., Grayanotoxin Poisoning: 'Mad Honey Disease' and Beyond, Cardiovascular Toxicology, 12, 3, 2012, 208–215, 10.1007/s12012-012-9162-2, 22528814, 3404272, Honey produced from flowers of rhododendrons, mountain laurels, sheep laurel, and azaleas may cause honey intoxication. Symptoms include dizziness, weakness, excessive perspiration, nausea, and vomiting. Less commonly, low blood pressure, shock, heart rhythm irregularities, and convulsions may occur, with rare cases resulting in death. Honey intoxication is more likely when using "natural" unprocessed honey and honey from farmers who may have a small number of hives. Commercial processing, with pooling of honey from numerous sources, is thought to dilute any toxins.{{webarchive|url=https://web.archive.org/web/20100314133504weblink|date=14 March 2010|title="Grayanotoxin"}}weblink" title="https:/-/web.archive.org/web/20130308010321weblink">weblink in the Foodborne Pathogenic Microorganisms and Natural Toxins Handbook, FDA Center for Food Safety and Applied Nutrition.Toxic honey may also result when bees are proximate to tutu bushes (Coriaria arborea) and the vine hopper insect (Scolypopa australis). Both are found throughout New Zealand. Bees gather honeydew produced by the vine hopper insects feeding on the tutu plant. This introduces the poison tutin into honey.{{citation | url=http://nba.org.nz/uploads/starting-with-bees-tutin-section.pdf | title=Tutu Bush and Toxic Honey | work=National Beekeepers Association, New Zealand | archive-url=https://web.archive.org/web/20111005173024weblink |archive-date=5 October 2011}} Only a few areas in New Zealand (the Coromandel Peninsula, Eastern Bay of Plenty and the Marlborough Sounds) frequently produce toxic honey. Symptoms of tutin poisoning include vomiting, delirium, giddiness, increased excitability, stupor, coma, and violent convulsions.WEB,weblink Tutu toxicity: three case reports of Coriaria arborea ingestion, review of literature and recommendations for management - New Zealand Medical Journal, www.nzma.org.nz, 2018-10-09, To reduce the risk of tutin poisoning, humans should not eat honey taken from feral hives in the risk areas of New Zealand. Since December 2001, New Zealand beekeepers have been required to reduce the risk of producing toxic honey by closely monitoring tutu, vine hopper, and foraging conditions within {{convert|3|km|mi|abbr=on}} of their apiary. {{citation needed|reason=needed for section in general|date=April 2015}} Intoxication is rarely dangerous.

History and culture

Honey use and production has a long and varied history. In many cultures, honey has associations that go beyond its use as a food. It was used medicinally and for embalming, and frequently used as a talisman and symbol of sweetness, with religious meaning.BOOK,weblink 21st Century Homestead: Beekeeping, Reuber, Brant, 2015-02-21, Lulu.com, 9781312937338,

In antiquity

File:Cueva arana.jpg|thumb|150px|Honey seeker depicted in an 8000-year-old cave painting at Araña Caves in Spain]]Honey collection is an ancient activity. A Mesolithic rock painting in a cave in Valencia, Spain, dating back at least 8,000 years, depicts two honey foragers collecting honey and honeycomb from a wild bees' nest. The figures are depicted carrying baskets or gourds, and using a ladder or series of ropes to reach the nest.Crane, Eva (1983) The Archaeology of Beekeeping, Cornell University Press, {{ISBN|0-8014-1609-4}}Humans follow the greater honeyguide bird to wild beehives;JOURNAL, Isack HA, Reyer HU, Honeyguides and honey gatherers: interspecific communication in a symbiotic relationship, Science, 243, 4896, 1343–6, 1989, 17808267, 10.1126/science.243.4896.1343, 1989Sci...243.1343I, this behavior may have evolved with early hominids.Short, Lester, Horne, Jennifer and Diamond, A. W. (2003). "Honeyguides". In Christopher Perrins (Ed.). Firefly Encyclopedia of Birds. Firefly Books. pp. 396–397. {{ISBN|1-55297-777-3}}.JOURNAL, 10.1080/00306525.1981.9633599, A Review of African Birds Feeding in Association with Mammals, 1981, Dean, W. R. J., MacDonald, I. A. W., Ostrich, 52, 3, 135–155, The oldest known honey remains were found in Georgia during the construction of the Baku-Tbilisi-Ceyhan pipeline: archaeologists found honey remains on the inner surface of clay vessels unearthed in an ancient tomb, dating back between 4,700 and 5,500 years.JOURNAL, 10.1007/s00334-006-0067-5, The first find in southern Georgia of fossil honey from the Bronze Age, based on palynological data, 2006, Kvavadze, Eliso, Gambashidze, Irina, Mindiashvili, Giorgi, Gogochuri, Giorgi, Vegetation History and Archaeobotany, 16, 5, 399–404, Georgian ancient honey {{webarchive|url=https://web.archive.org/web/20120704110909weblink |date=4 July 2012 }}. cncworld.tv (31 March 2012). Retrieved on 10 July 2012.Report: Georgia Unearths the World's Oldest Honey. EurasiaNet (30 March 2012). Retrieved on 3 July 2015. In ancient Georgia, several types of honey were buried with a person for their journey into the afterlife, including linden, berry, and meadow-flower varieties.The world's first winemakers were the world's first beekeepers. guildofscientifictroubadours.com (2 April 2012). Retrieved on 10 July 2012.The spiritual and therapeutic use of honey in ancient India is documented in both the Vedas and the Ayurveda texts, which were both composed at least 4,000 years ago.JOURNAL, Pećanac M, Janjić Z, Komarcević A, Pajić M, Dobanovacki D, Misković SS, Burns treatment in ancient times, Med Pregl, 66, 5–6, 263–7, 2013, 10.1016/s0264-410x(02)00603-5, 23888738, In ancient Egypt honey was used to sweeten cakes, biscuits, and other foods. Ancient Egyptian and Middle Eastern peoples also used honey for embalming the dead.Larry Gonick The Cartoon History of the Universe Vol.2Min, the fertility god of Egypt, was offered honey.In ancient Greece, honey was produced from the Archaic to the Hellenistic periods. In 594 BCBOOK, Pliny, XI.9.19, beekeeping around Athens was so widespread that Solon passed a law about it: "He who sets up hives of bees must put them {{convert|300|ft|m|abbr=off}} away from those already installed by another".BOOK, Plutarch, Life of Solon, 23, Greek archaeological excavations of pottery located ancient hives.BOOK, Bresson, Alain, The Making of the Ancient Greek Economy: Institutions, Markets and Growth, Princeton University Press,weblink 16 December 2015, 9781400852451, 2015-11-03, According to Columella, Greek beekeepers of the Hellenistic period did not hesitate to move their hives over rather long distances to maximize production, taking advantage of the different vegetative cycles in different regions.In the absence of sugar, honey was an integral sweetening ingredient in Greek and Roman cuisine. During Roman times, honey was part of many recipes and it is mentioned in the work of many authors, including Virgil, Pliny, and Cicero.{{citation needed|date=January 2016}}Beekeeping has been practised in China since ancient times, and appears to be untraceable to its origin. In the book Golden Rules of Business Success written by Fan Li (or Tao Zhu Gong) during the Spring and Autumn period, some parts mention the art of beekeeping and the importance of the quality of the wooden box for beekeeping that can affect the quality of its honey.{{citation needed|date=December 2013}}Honey was also cultivated in ancient Mesoamerica. The Maya used honey from the stingless bee for culinary purposes, and continue to do so today. The Maya regard the bee as sacred (see Mayan stingless bees of Central America).

Folk medicine and wound research

In myths and folk medicine, honey was used both orally and topically to treat various ailments including gastric disturbances, ulcers, skin wounds, and skin burns by ancient Greeks and Egyptians, and in Ayurveda and traditional Chinese medicine.Proposed for treating wounds and burns, honey may have antimicrobial properties as first reported in 1892 and be useful as a safe, improvizational wound treatment.JOURNAL, Maddocks, Sarah E, Jenkins, Rowena E, Honey: a sweet solution to the growing problem of antimicrobial resistance?, Future Microbiology, 2013, 8, 11, 1419–1429, 10.2217/fmb.13.105, 24199801, JOURNAL, Stewart, JA, McGrane, OL, Wedmore, IS, Wound care in the wilderness: is there evidence for honey?, Wilderness Environ Med., 2014, 25, 1 (Mar), 103–110, 10.1016/j.wem.2013.08.006, 24393701, Though its supposed antimicrobial properties may be due to high osmolarity even when diluted with water, it is more effective than plain sugar water of a similar viscosity. Definitive clinical conclusions about the efficacy and safety of treating wounds, however, are not possible from this limited research.The flowers that bees use to make the honey may have a role in its properties. One study proposes that the honey produced by bees foraging from the manuka myrtle, Leptospermum scoparium has distinctive properties.

Religious significance

In ancient Greek religion, the food of Zeus and the twelve Gods of Olympus was honey in the form of nectar and ambrosia.BOOK, Harvard Studies in Classical Philology,weblink Harvard University Press, 1 April 1980, 9780674379305, en, Albert, Henrichs, In Hinduism, honey (Madhu) is one of the five elixirs of life (Panchamrita). In temples, honey is poured over the deities in a ritual called Madhu abhisheka. The Vedas and other ancient literature mention the use of honey as a great medicinal and health food.A Meaningful Story of Buddha, Elephant and Monkey {{webarchive|url=https://web.archive.org/web/20080319080236weblink |date=19 March 2008 }} by Marguerite Theophil, United Press International, 16 November 2006, accessed 9 August 2008In Jewish tradition, honey is a symbol for the new year, Rosh Hashanah. At the traditional meal for that holiday, apple slices are dipped in honey and eaten to bring a sweet new year. Some Rosh Hashanah greetings show honey and an apple, symbolizing the feast. In some congregations, small straws of honey are given out to usher in the new year.BOOK,weblink Napa Valley's Jewish Heritage, Michalski, Henry, Mendelsohn, Donna, Valley, Jewish Historical Society of Napa, 2012-01-01, Arcadia Publishing, 9780738588988, The Hebrew Bible contains many references to honey. In the Book of Judges, Samson found a swarm of bees and honey in the carcass of a lion (14:8). Biblical law covered offerings made in the temple to God. The Book of Leviticus says that "Every grain offering you bring to the Lord must be made without yeast, for you are not to burn any yeast or honey in a food offering presented to the Lord" (2:11). In the Books of Samuel, Jonathan is forced into a confrontation with his father King Saul after eating honey in violation of a rash oath Saul has made.{{bibleverse|1|Samuel|14:24–47|NKJV}} Proverbs 16:24 in the JPS Tanakh 1917 version says "Pleasant words are as a honeycomb, Sweet to the soul, and health to the bones." Book of Exodus famously describes the Promised Land as a "land flowing with milk and honey" (33:3). However, most Biblical commentators write that the original Hebrew in the Bible (דבש devash) refers to the sweet syrup produced from the juice of dates (silan).Berel, Rabbi. (24 September 2005) Apples and Honey. Aish.com. Retrieved on 6 February 2011. In 2005 an apiary dating from the 10th century B.C. was found in Tel Rehov, Israel that contained 100 hives, estimated to produce half a ton of honey annually.JOURNAL, Mazar, Amihai, Panitz-Cohen, Nava, It Is the Land of Honey: beekeeping at Tel Rehov, Near Eastern Archaeology (journal), Near Eastern Archaeology, 2007, 70, 4, 202–219, 10.1086/nea20361335, WEB, The Hebrew University of Jerusalem, First Beehives In Ancient Near East Discovered,weblink ScienceDaily, 6 October 2015, Pure honey is considered kosher (permitted to be eaten by religious Jews), though it is produced by a flying insect, a non-kosher creature; eating other products of non-kosher animals is forbidden."Why is honey kosher?" Chabad.org. Retrieved 30 November 2010.In Buddhism, honey plays an important role in the festival of Madhu Purnima, celebrated in India and Bangladesh. The day commemorates Buddha's making peace among his disciples by retreating into the wilderness. According to legend, while he was there a monkey brought him honey to eat. On Madhu Purnima, Buddhists remember this act by giving honey to monks. The monkey's gift is frequently depicted in Buddhist art.The Christian New Testament ((Matthew 3:4)) says that John the Baptist lived for a long of time in the wilderness on a diet of locusts and honey.In Islam, an entire chapter (Surah) in the Qur'an is called an-Nahl (the Bees). According to his teachings (hadith), Muhammad strongly recommended honey for healing purposes.Sahih Bukhari vol. 7, book 71, number 584, 585, 588 and 603. The Qur'an promotes honey as a nutritious and healthy food, saying:{{bquote|And thy Lord taught the Bee to build its cells in hills, on trees, and in (men's) habitations; Then to eat of all the produce (of the earth), and find with skill the spacious paths of its Lord: there issues from within their bodies a drink of varying colours, wherein is healing for men: verily in this is a Sign for those who give thought [Al-Quran 16:68–69].BOOK, 'Abdullah, Yusuf 'Ali, An Nahl, Al-Quran Chapter 16 (The Bee) quoted from "The Holy Qur'an: Original Arabic Text with English Translation & Selected Commentaries",weblink 20 May 2013, Saba Islamic Media, bot: unknown,weblink" title="web.archive.org/web/20130226013840weblink">weblink 26 February 2013, dmy-all, }}{{Clear}}

See also

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References

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Bibliography

  • BOOK, Krell, R., Food and Agriculture Organization of the United Nations, Value-added products from beekeeping,weblink 1996, 978-92-5-103819-2, Krell, 5 January 2016,
  • BOOK, Root, A. I., Root, E. R., The ABC and Xyz of Bee Culture,weblink 2005, Kessinger Publishing, 978-1-4179-2427-1, Root, 5 January 2016,

External links

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