Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple

sugars Sugar is the generic name for sweet-tasting, soluble carbohydrates, many of which are used in food. Simple sugars, also called monosaccharides, include glucose, fructose, and galactose. Compound sugars, also called disaccharides or double ...

ethanol Ethanol (abbr. EtOH; also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound. It is an alcohol with the chemical formula . Its formula can be also written as or (an ethyl group linked to a ...

using yeast, and ethanol to acetic acid by

acetic acid bacteria Acetic acid bacteria (AAB) are a group of Gram-negative bacteria which oxidize sugars or ethanol and produce acetic acid during fermentation. The acetic acid bacteria consist of 10 genera in the family Acetobacteraceae. Several species of acetic ...

. Many types of vinegar are available, depending on source materials. It is now mainly used in the culinary arts as a flavorful, acidic cooking ingredient, or in

pickling Pickling is the process of preserving or extending the shelf life of food by either anaerobic fermentation in brine or immersion in vinegar. The pickling procedure typically affects the food's texture and flavor. The resulting food is cal ...

. Various types are used as

condiment A condiment is a preparation that is added to food, typically after cooking, to impart a specific flavor, to enhance the flavor, or to complement the dish. A table condiment or table sauce is more specifically a condiment that is served separat ...

s or garnishes, including

balsamic vinegar Balsamic vinegar ( it, aceto balsamico) is a very dark, concentrated and intensely flavoured vinegar originating in Modena, Italy, made wholly or partially from grape must: freshly crushed grape juice with all the skins, seeds and stems. The t ...

and

malt vinegar Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple sugars to et ...

. As the most easily manufactured mild acid, it has a wide variety of industrial and domestic uses, including use as a household cleaner.

Etymology

The word "vinegar" arrived in

Middle English Middle English (abbreviated to ME) is a form of the English language that was spoken after the Norman conquest of 1066, until the late 15th century. The English language underwent distinct variations and developments following the Old English ...

from

Old French Old French (, , ; Modern French: ) was the language spoken in most of the northern half of France from approximately the 8th to the 14th centuries. Rather than a unified language, Old French was a linkage of Romance dialects, mutually intellig ...

(''vyn egre''; sour wine), which in turn derives from

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

: ''vinum'' (wine) + ''acer'' (sour).

Chemistry

The conversion of ethanol (CH₃CH₂OH) and oxygen (O₂) to acetic acid (CH₃COOH) takes place by the following reaction: :CH_3CH_2OH + O_2->CH_3COOH + H_2O

Polyphenols

Vinegar contains numerous flavonoids,

phenolic acid Phenolic acids or phenolcarboxylic acids are types of aromatic acid compounds. Included in that class are substances containing a phenolic ring and an organic carboxylic acid function (C6-C1 skeleton). Two important naturally occurring types of ph ...

s, and

aldehyde In organic chemistry, an aldehyde () is an organic compound containing a functional group with the structure . The functional group itself (without the "R" side chain) can be referred to as an aldehyde but can also be classified as a formyl grou ...

s, which vary in content depending on the source material used to make the vinegar, such as

orange peel An orange is a fruit of various citrus species in the family Rutaceae (see list of plants known as orange); it primarily refers to ''Citrus'' × ''sinensis'', which is also called sweet orange, to distinguish it from the related ''Citrus × ...

or various fruit juice

concentrate A concentrate is a form of substance that has had the majority of its base component (in the case of a liquid: the solvent) removed. Typically, this will be the removal of water from a solution or suspension, such as the removal of water from ...

History

While vinegar making may be as old as alcoholic brewing, the first documented evidence of vinegar making and use was by the ancient Babylonians around 3000 BC. They primarily made vinegar from dates, figs, and beer and used it for both culinary and medicinal purposes. Traces of it also have been found in

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Medit ...

ian

urn An urn is a vase, often with a cover, with a typically narrowed neck above a rounded body and a footed pedestal. Describing a vessel as an "urn", as opposed to a vase or other terms, generally reflects its use rather than any particular shape or ...

s. In East Asia, the Chinese began professionalizing vinegar production in the

Zhou dynasty The Zhou dynasty ( ; Old Chinese ( B&S): *''tiw'') was a royal dynasty of China that followed the Shang dynasty. Having lasted 789 years, the Zhou dynasty was the longest dynastic regime in Chinese history. The military control of China by ...

. The book '' Zhou Li'' mentions many noble or royal households had a "vinegar maker" as a specialized occupation. Most vinegar-making then was concentrated in what is now

Shanxi province Shanxi (; ; formerly romanised as Shansi) is a landlocked province of the People's Republic of China and is part of the North China region. The capital and largest city of the province is Taiyuan, while its next most populated prefecture-level ...

near the city Taiyuan, which remains a famous vinegar-making region today. Many Chinese kinds of vinegar and their uses for culinary and medicinal purposes were written down in the agricultural manual ''

Qimin Yaoshu The ''Qimin Yaoshu'' is the most completely preserved of the ancient Chinese agricultural texts, and was written by the Northern Wei Dynasty official Jia Sixie.Wenhua Li, 200Agro-Ecological Farming Systems in ChinaTaylor & Francis, p. 26 -27 Th ...

'' (齊民要術). The Greeks and Romans frequently used vinegar made from wine. The Spartans had vinegar as a part of their traditional broth ''melas zomos''. The Roman

Columella Lucius Junius Moderatus Columella (; Arabic: , 4 – ) was a prominent writer on agriculture in the Roman Empire. His ' in twelve volumes has been completely preserved and forms an important source on Roman agriculture, together with the wo ...

described the ingredients and process for making several types of vinegar in his work ''Res Rustica''. In the late Middle Ages, vinegar making was slowly being professionalized in Europe, with the French city of

Orléans Orléans (;"Orleans"
(US) and During this time, malt vinegar also began to develop in England, where it was first known as ''alegar''. Balsamic vinegar also began its evolution in the

Duchy of Modena A duchy, also called a dukedom, is a medieval country, territory, fief, or domain ruled by a duke or duchess, a ruler hierarchically second to the king or queen in Western European tradition. There once existed an important difference between ...

in Italy, though it would not become widely known until the

Napoleonic Wars The Napoleonic Wars (1803–1815) were a series of major global conflicts pitting the French Empire and its allies, led by Napoleon I, against a fluctuating array of European states formed into various coalitions. It produced a period of Fren ...

after being sold abroad by French troops. In the 19th century, vinegar production underwent many dramatic changes, such as rapid industrialization and scientific analysis. Karl Sebastian Schüzenbach invented the first large-scale industrial process for vinegar production in the Kingdom of Baden in 1823. Known as the packed generator, it circulated alcohol over beechwood shavings to reduce fermentation times from several months down to 1–2 weeks. This process also facilitated the rise of vinegar made from pure alcohol called spirit vinegar or distilled white vinegar. Japan also began industrializing vinegar production during the last days of the

Tokugawa shogunate The Tokugawa shogunate (, Japanese 徳川幕府 ''Tokugawa bakufu''), also known as the , was the military government of Japan during the Edo period from 1603 to 1868. Nussbaum, Louis-Frédéric. (2005)"''Tokugawa-jidai''"in ''Japan Encyclopedia ...

, when Matazaemon Nakano, a man from a traditional

sake Sake, also spelled saké ( ; also referred to as Japanese rice wine), is an alcoholic beverage of Japanese origin made by fermenting rice that has been polished to remove the bran. Despite the name ''Japanese rice wine'', sake, and indee ...

brewing family, discovered sake lees could be used to make rice vinegar. This helped provide ample vinegar for the burgeoning popularity of

sushi is a Japanese dish of prepared , usually with some sugar and salt, accompanied by a variety of , such as seafood, often raw, and vegetables. Styles of sushi and its presentation vary widely, but the one key ingredient is "sushi rice," also ...

in Japan. The company he founded, now known as

Mizkan is a Japanese company that produces vinegars (including seasoned rice vinegars, balsamic vinegars, and wine vinegars), mustards, salad dressings, authentic East Asian sauces, nattō, and other food products. It is based in Handa, Aichi ...

, is headquartered in

Kyoto Kyoto (; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in Japan. Located in the Kansai region on the island of Honshu, Kyoto forms a part of the Keihanshin, Keihanshin metropolitan area along wi ...

and is the largest vinegar producer in the world. Likewise, vinegar fermentation became understood as a natural and biological process. Louis Pasteur made the decisive discovery that a special type of bacteria, later known as

, was the agent of fermentation for vinegar production. In the 20th century, vinegar production was again revolutionized by the invention of the submerged fermentation process that cut production times down to 1–2 days. This allowed the mass production of cheap vinegar around the world.

Production

Commercial vinegar is produced either by a fast or a slow fermentation process. In general, slow methods are used in traditional vinegars, where fermentation proceeds over the course of a few months to a year. The longer fermentation period allows for the accumulation of a nontoxic slime composed of acetic acid bacteria and their cellulose

biofilm A biofilm comprises any syntrophic consortium of microorganisms in which cells stick to each other and often also to a surface. These adherent cells become embedded within a slimy extracellular matrix that is composed of extracellular ...

, known as mother of vinegar. Fast methods add the aforementioned mother of vinegar as a

bacterial culture A microbiological culture, or microbial culture, is a method of multiplying microbial organisms by letting them reproduce in predetermined culture medium under controlled laboratory conditions. Microbial cultures are foundational and basic diagn ...

to the source liquid before adding air to oxygenate and promote the fastest fermentation. In fast production processes, vinegar may be produced in 1-3 days.

Varieties

The source materials for making vinegar are varied – different fruits, grains, alcoholic beverages, and other fermentable materials are used.

Fruit

Fruit vinegars are made from fruit wines, usually without any additional flavoring. Common flavors of fruit vinegar include apple, blackcurrant, raspberry, quince, and tomato. Typically, the flavors of the original fruits remain in the final product. Most fruit vinegars are produced in Europe, where a market exists for high-priced vinegars made solely from specific fruits (as opposed to nonfruit vinegars that are infused with fruits or fruit flavors). Several varieties are produced in Asia. Persimmon vinegar, called ''gam sikcho'', is common in

South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea. Its western border is formed by the Yellow Sea, while its eas ...

Jujube Jujube (), sometimes jujuba, known by the scientific name ''Ziziphus jujuba'' and also called red date, Chinese date, and Chinese jujube, is a species in the genus '' Ziziphus'' in the buckthorn family Rhamnaceae. Description It is a smal ...

vinegar, called ''zaocu'' or ''hongzaocu'', and

wolfberry Goji, goji berry, or wolfberry () is the fruit of either ''Lycium barbarum'' or '' Lycium chinense'', two closely related species of boxthorn in the nightshade family, Solanaceae. ''L. barbarum'' and ''L. chinense'' fruits are simil ...

vinegar are produced in China. Persimmonvinegar

Apple cider vinegar Apple cider vinegar, or cider vinegar, is a vinegar made from fermented apple juice, and used in salad dressings, marinades, vinaigrettes, food preservatives, and chutneys. It is made by crushing apples, then squeezing out the juice. Bacteria a ...

is made from cider or apple must, and has a brownish-gold color. It is sometimes sold unfiltered and unpasteurized with the mother of vinegar present. It can be diluted with fruit juice or water or sweetened (usually with honey) for consumption. A byproduct of commercial

kiwifruit Kiwifruit (often shortened to kiwi in North American, British and continental European English) or Chinese gooseberry is the edible berry of several species of woody vines in the genus '' Actinidia''. The most common cultivar group of kiwi ...

growing is a large amount of waste in the form of misshapen or otherwise-rejected fruit (which may constitute up to 30% of the crop) and kiwifruit

pomace Pomace ( ), or marc (; from French ''marc'' ), is the solid remains of grapes, olives, or other fruit after pressing for juice or oil. It contains the skins, pulp, seeds, and stems of the fruit. Grape pomace has traditionally been used to pro ...

. One of the uses for pomace is the production of kiwifruit vinegar, produced commercially in New Zealand since at least the early 1990s, and in China in 2008. Vinegar made from

raisin A raisin is a dried grape. Raisins are produced in many regions of the world and may be eaten raw or used in cooking, baking, and brewing. In the United Kingdom, Ireland, New Zealand, and Australia, the word ''raisin'' is reserved for the ...

s is used in cuisines of the Middle East. It is cloudy and medium brown in color, with a mild flavor. Vinegar made from

dates Date or dates may refer to: *Date (fruit), the fruit of the date palm (''Phoenix dactylifera'') Social activity *Dating, a form of courtship involving social activity, with the aim of assessing a potential partner **Group dating * Play date, a ...

is a traditional product of the

Middle East The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabia (including the Arabian Peninsula and Bahrain), Asia Minor (Asian part of Turkey except Hatay Province), East Thrace (Europ ...

, and used in

Eastern Arabia Eastern Arabia, historically known as al-Baḥrayn ( ar, البحرين) until the 18th century, is a region stretched from Basra to Khasab along the Persian Gulf coast and included parts of modern-day Bahrain, Kuwait, Eastern Saudi Arabia, Unite ...

Palm

Coconut vinegar, made from fermented

coconut water Coconut water (also coconut juice) is the clear liquid inside coconuts (fruits of the coconut palm). In early development, it serves as a suspension for the endosperm of the coconut during the nuclear phase of development. As growth conti ...

or sap, is used extensively in Southeast Asian cuisine (notably the Philippines, where it is known as '' sukang tuba''), as well as in some cuisines of

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

and Sri Lanka, especially

Goan cuisine Goan cuisine consists of regional foods popular in Goa, an Indian state located along India's west coast on the shore of the Arabian Sea. Rice, seafood, coconut, vegetables, meat, bread, pork and local spices are some of the main ingredients in ...

. A cloudy, white liquid, it has a particularly sharp, acidic taste with a slightly yeasty note. In the Philippines, other types of vinegar are made from palm sap. Like coconut vinegar, they are by-products of ''

tubâ Tubâ () is a Filipino alcoholic beverage created from the sap of various species of palm trees. During the Spanish colonial period, tubâ was introduced to Guam, the Marianas, and Mexico via the Manila Galleons. They remain popular in Mexico ...

'' (palm wine) production. The two of the most widely produced are nipa palm vinegar (''sukang nipa'' or ''sukang sasa'') and

kaong palm vinegar Kaong palm vinegar, also known as irok palm vinegar or arengga palm vinegar, is a traditional Filipino vinegar made from the sap of the kaong sugar palm (''Arenga pinnata''). It is one of the four main types of vinegars in the Philippines, alon ...

(''sukang kaong'' or ''sukang irok''). Along with coconut and cane vinegar, they are the four main traditional vinegar types in the Philippines and are an important part of

Filipino cuisine Filipino cuisine ( fil, lutong Pilipino/pagkaing Pilipino) is composed of the cuisines of more than a hundred distinct ethnolinguistic groups found throughout the Philippine archipelago. A majority of mainstream Filipino dishes that compose Fi ...

. Nipa palm vinegar is made from the sap of the leaf stalks of

nipa palm ''Nypa fruticans'', commonly known as the nipa palm (or simply nipa, from ms, nipah) or mangrove palm, is a species of palm native to the coastlines and estuarine habitats of the Indian and Pacific Oceans. It is the only palm considered adapt ...

. It has a citrusy flavor note to it and imparts a distinctly musky aroma. Kaong palm vinegar is made from the sap of flower stalks of the

kaong palm ''Arenga pinnata'' (syn. ''Arenga saccharifera'') is an economically important feather palm native to tropical Asia, from eastern India east to Malaysia, Indonesia, and the Philippines in the east. Common names include sugar palm, areng palm (al ...

. It is sweeter than all the other Philippine vinegar types and is commonly used in salad dressing. Vinegar from the

buri palm ''Corypha'' (gebang palm, buri palm or talipot palm) is a genus of palms (family Arecaceae), native to India, Malaysia, Indonesia, the Philippines, New Guinea and northeastern Australia (Cape York Peninsula, Queensland). They are fan palms (su ...

sap is also produced, but not the same prevalence as coconut, nipa, and kaong vinegars. Kaong palm vinegar is also produced in Indonesia and Malaysia, though it is not as prevalent as in the Philippines because the palm wine industry is not as widespread in these Muslim-majority countries.

Balsamic

Balsamic vinegar is an aromatic, aged vinegar produced in the Modena and Reggio Emilia provinces of Italy. The original product — traditional balsamic vinegar — is made from the concentrated juice, or must, of white Trebbiano grapes. It is dark brown, rich, sweet, and complex, with the finest grades being aged in successive casks made variously of oak, mulberry, chestnut, cherry, juniper, and ash wood. Originally a costly product available to only the Italian upper classes, traditional balsamic vinegar is marked ''tradizionale'' or "DOC" to denote its protected designation of origin status, and is aged for 12 to 25 years. A cheaper non-DOC commercial form described as ''aceto balsamico di Modena'' (balsamic vinegar of Modena) became widely known and available around the world in the late 20th century, typically made with concentrated grape juice mixed with a strong vinegar, then coloured and slightly sweetened with caramel and sugar. Balsamic vinegar is made from a

grape A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus '' Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years a ...

product. It contains no

balsam Balsam is the resinous exudate (or sap) which forms on certain kinds of trees and shrubs. Balsam (from Latin balsamum "gum of the balsam tree", ultimately from Semitic, Aramaic ''busma'', Arabic ''balsam'' and Hebrew ''basam'', "spice", "perfume ...

, though was traditionally aged in balsam as one of the steps. A high acidity level is somewhat hidden by the sweetness of the other ingredients, making it mellow. In terms of its nutrition content, balsamic vinegar contains the carbohydrates of grape sugars (some 17% of total composition), making it some five times higher in caloric content than typical distilled or wine vinegar.

Cane

Vinegar made from

sugarcane juice Sugarcane juice is the liquid extracted from pressed sugarcane. It is consumed as a beverage in many places, especially where sugarcane is commercially grown, such as Southeast Asia, the Indian subcontinent, North Africa, and Latin America. Sug ...

is traditional to and is most popular in the

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

, in particular in the northern

Ilocos Region Ilocos Region ( ilo, Rehion/Deppaar ti Ilocos; pag, Sagor na Baybay na Luzon/Rehiyon Uno; tl, Rehiyon ng Ilocos) is an administrative region of the Philippines, designated as Region I, occupying the northwestern section of Luzon and part of ...

(where it is called ''sukang Iloko'' or ''sukang

basi ''Basi'' is a native ''Ilocano'' fermented alcoholic beverage or wine made with sugarcane juice, particularly those produced in the region of ''Northern Luzon'' particularly in ''Ilocos Region''. This wine is processed in ''“burnay”'' ( ...

''). It ranges from dark yellow to golden brown in color, and has a mellow flavor, similar in some respects to rice vinegar, though with a somewhat "fresher" taste. Because it contains no residual sugar, it is no sweeter than any other vinegar. In the Philippines, it often is labeled as ''sukang maasim'' ( Tagalog for "sour vinegar"). Cane vinegars from Ilocos are made in two different ways. One way is to simply place sugar cane juice in large jars; it becomes sour by the direct action of bacteria on the sugar. The other way is through fermentation to produce a traditional wine known as ''

''. Low-quality ''basi'' is then allowed to undergo acetic acid fermentation that converts alcohol into acetic acid. Contaminated ''basi'' also becomes vinegar. Cane vinegar is also produced in other countries, like France and the United States. A white variation has become quite popular in Brazil in recent years, where it is the cheapest type of vinegar sold. It is now common for other types of vinegar (made from wine, rice, and apple cider) to be sold mixed with cane vinegar to lower the cost. Sugarcane ''sirka'' is made from sugarcane juice in parts of northern India. During summer, people put cane juice in earthenware pots with iron nails. The fermentation takes place due to the action of wild yeast. The cane juice is converted to vinegar having a blackish color (from ferrous oxide and acetate). The ''sirka'' is used to preserve pickles and for flavoring curries.

Grains

vinegar made from ale, also called "alegar", is made by malting

barley Barley (''Hordeum vulgare''), a member of the grass family, is a major cereal grain grown in temperate climates globally. It was one of the first cultivated grains, particularly in Eurasia as early as 10,000 years ago. Globally 70% of barley p ...

, causing the starch in the grain to turn to maltose. Then an ale is brewed from the maltose and allowed to turn into vinegar, which is then aged. It is typically light-brown in color. Malt vinegar (along with salt) is a traditional seasoning for fish and chips, and in the United Kingdom and Canada, a popular seasoning for French fries in general. Some fish and chip shops replace it with non-brewed condiment. Salt and vinegar are combined as a common, traditional flavouring for

potato crisp A potato chip (North American English; often just chip) or crisp (British and Irish English) is a thin slice of potato that has been either deep fried, baked, or air fried until crunchy. They are commonly served as a snack, side dish, or ap ...

s; in some varieties this involves the conversion of the vinegar to

sodium acetate Sodium acetate, CH3COONa, also abbreviated Na O Ac, is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses. Applications Biotechnological Sodium acetate is used as the carbon source for culturing bacteria ...

sodium diacetate Sodium diacetate is a compound with formula . It is a salt of acetic acid. It is a colorless solid that is used in seasonings and as an antimicrobial agent. Preparation and structure The salt forms upon half- neutralization of acetic acid foll ...

, to avoid dampening the product in manufacture. Chinese Vinegar

Chinese

black vinegar Black vinegar is dark-colored vinegar used in Chinese cuisine. Types China One of the most important types of Chinese "black vinegar" is the Shanxi mature vinegar () from the central plains of Northern China, particularly in the Shanxi prov ...

is an aged product made from

rice Rice is the seed of the grass species '' Oryza sativa'' (Asian rice) or less commonly ''Oryza glaberrima'' (African rice). The name wild rice is usually used for species of the genera '' Zizania'' and '' Porteresia'', both wild and domesticat ...

wheat Wheat is a grass widely cultivated for its seed, a cereal grain that is a worldwide staple food. The many species of wheat together make up the genus ''Triticum'' ; the most widely grown is common wheat (''T. aestivum''). The archaeologi ...

, millet, sorghum, or a combination thereof. It has an inky black color and a complex, malty flavor. The recipe is not fixed, so some Chinese black vinegars may contain added sugar, spices, or caramel color. The most popular variety,

Zhenjiang vinegar Zhenjiang or Chinkiang vinegar is a rice-based black vinegar widely used in Chinese cuisine. It takes its name from the city of Zhenjiang in Jiangsu province. History Chinese legend ascribes the invention of the vinegar to Heita, a son of Duk ...

, originates in the city of

Zhenjiang Zhenjiang, alternately romanized as Chinkiang, is a prefecture-level city in Jiangsu Province, China. It lies on the southern bank of the Yangtze River near its intersection with the Grand Canal. It is opposite Yangzhou (to its north) and ...

in Jiangsu Province, eastern China. Shanxi mature vinegar is another popular type of Chinese vinegar that is made exclusively from sorghum and other grains. Nowadays in Shanxi province, some traditional vinegar workshops still produce handmade vinegar with a high acidity that is aged for at least five years. Only the vinegars made in Taiyuan and some counties in Jinzhong and aged for at least three years are considered authentic Shanxi mature vinegar according to the latest national standard. A somewhat lighter form of black vinegar, made from rice, is produced in Japan, where it is called ''kurozu''.

Rice vinegar Rice vinegar is a vinegar made from fermented rice in East Asia (China, Japan and Korea), as well as in Vietnam in Southeast Asia. It is used as a seasoning, dressing, and dipping in many dishes, including sushi, jiaozi, and banchans. Some of i ...

is most popular in the cuisines of East and Southeast Asia. It is available in "white" (light yellow), red, and black varieties. The Japanese prefer a light rice vinegar for the preparation of

sushi rice is a Japanese dish of prepared , usually with some sugar and salt, accompanied by a variety of , such as seafood, often raw, and vegetables. Styles of sushi and its presentation vary widely, but the one key ingredient is "sushi rice," also ...

and salad dressings. Red rice vinegar traditionally is colored with

red yeast rice Red yeast rice (), red rice ''koji'' (べにこうじ, lit. 'red ''koji), red fermented rice, red kojic rice, red ''koji'' rice, ''anka'', or ''angkak'', is a bright reddish purple fermented rice, which acquires its color from being cultivate ...

. Black rice vinegar (made with black glutinous rice) is most popular in China, and it is also widely used in other East Asian countries. White rice vinegar has a mild acidity with a somewhat "flat" and uncomplex flavor. Some varieties of rice vinegar are sweetened or otherwise seasoned with spices or other added flavorings.

Spirits

The term "spirit vinegar" is sometimes reserved for the stronger variety (5 to 24% acetic acid) made from sugar cane or from chemically produced acetic acid. To be called "spirit vinegar", the product must come from an agricultural source and must be made by "double fermentation". The first fermentation is sugar to alcohol and the second is alcohol to acetic acid. Product made from synthetically produced acetic acid cannot be called "vinegar" in the UK, where the term allowed is " non-brewed condiment". Sherry vinegar is linked to the production of

sherry Sherry ( es, jerez ) is a fortified wine made from white grapes that are grown near the city of Jerez de la Frontera in Andalusia, Spain. Sherry is produced in a variety of styles made primarily from the Palomino grape, ranging from light versi ...

wines of

Jerez Jerez de la Frontera (), or simply Jerez (), is a Spanish city and municipality in the province of Cádiz in the autonomous community of Andalusia, in southwestern Spain, located midway between the Atlantic Ocean and the Cádiz Mountains. , the c ...

. Dark mahogany in color, it is made exclusively from the acetic fermentation of wines. It is concentrated and has generous aromas, including a note of wood, ideal for vinaigrettes and flavoring various foods. Wine vinegar is made from red or white wine, and is the most commonly used vinegar in Southern and

Central Europe Central Europe is an area of Europe between Western Europe and Eastern Europe, based on a common historical, social and cultural identity. The Thirty Years' War (1618–1648) between Catholicism and Protestantism significantly shaped the a ...

Cyprus Cyprus ; tr, Kıbrıs (), officially the Republic of Cyprus,, , lit: Republic of Cyprus is an island country located south of the Anatolian Peninsula in the eastern Mediterranean Sea. Its continental position is disputed; while it is ge ...

, and

Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...

. As with wine, the range in quality is considerable. Better-quality wine vinegars are matured in wood for up to two years, and exhibit a complex, mellow flavor. Wine vinegar tends to have a lower acidity than white or cider vinegars. More expensive wine vinegars are made from individual varieties of wine, such as champagne, sherry, or pinot gris. The term "distilled vinegar" as used in the United States (called "spirit vinegar" in the UK, "white vinegar" in Canada) is something of a misnomer because it is not produced by distillation, but by fermentation of distilled alcohol. The fermentate is diluted to produce a colorless solution of 5 to 8% acetic acid in water, with a pH of about 2.6. This is variously known as distilled spirit, "virgin" vinegar, or white vinegar, and is used in cooking, baking, meat preservation, and

, as well as for medicinal, laboratory, and cleaning purposes.Sinclair C, ''International Dictionary of Food and Cooking'', Peter Collin Publishing, 1998 The most common starting material in some regions, because of its low cost, is barley malt, or in the United States, corn. It is sometimes derived from petroleum. Distilled vinegar is used predominantly for cooking, although in the UK it is used as an alternative to brown or light malt vinegar. White distilled vinegar can also be used for cleaning, and some types are sold specifically for this purpose.

Culinary uses

Vinegar is commonly used in

food preparation Food is any substance consumed by an organism for nutritional support. Food is usually of plant, animal, or fungal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ing ...

, in particular as

liquids,

vinaigrette Vinaigrette ( , ) is made by mixing an oil with a mild acid such as vinegar or lemon juice (citric acid). The mixture can be enhanced with salt, herbs and/or spices. It is used most commonly as a salad dressing, but can also be used as a marina ...

s, and other

salad dressings A salad dressing is a sauce for salads. Used on virtually all '' leafy salads'', dressings may also be used in making salads of beans (such as three bean salad), noodle or pasta salads and antipasti, and forms of potato salad. Salad dressings ...

. It is an ingredient in

sauce In cooking, a sauce is a liquid, cream, or semi-solid food, served on or used in preparing other foods. Most sauces are not normally consumed by themselves; they add flavor, moisture, and visual appeal to a dish. ''Sauce'' is a French wor ...

s, such as

hot sauce Hot sauce is a type of condiment, seasoning, or salsa made from chili peppers and other ingredients. Many commercial varieties of mass-produced hot sauce exist. History Humans have used chili peppers and other hot spices for thousands of ye ...

, mustard, ketchup, and mayonnaise. Vinegar is sometimes used in

chutney A chutney is a spread in the cuisines of the Indian subcontinent. Chutneys are made in a wide variety of forms, such as a tomato relish, a ground peanut garnish, yogurt or curd, cucumber, spicy coconut, spicy onion or mint dipping sa ...

s. It is often used as a

on its own, or as a part of other condiments. Marinades often contain vinegar. Soups sometimes have vinegar added to them, as is the case with hot and sour soup. In terms of its

shelf life Shelf life is the length of time that a commodity may be stored without becoming unfit for use, consumption, or sale. In other words, it might refer to whether a commodity should no longer be on a pantry shelf (unfit for use), or no longer on a ...

, vinegar's acidic nature allows it to last indefinitely without the use of

refrigeration The term refrigeration refers to the process of removing heat from an enclosed space or substance for the purpose of lowering the temperature.International Dictionary of Refrigeration, http://dictionary.iifiir.org/search.phpASHRAE Terminology, ht ...

; it is essentially already "spoiled".

Beverages

Several beverages are made using vinegar, for instance ''

posca Posca was an Ancient Roman drink made by mixing wine vinegar and water. Bracing but less nutritious and palatable than wine, it was typically a drink for soldiers, the lower classes, and slaves. Etymology and later elaborations The word ''posc ...

'' in

ancient Rome In modern historiography, ancient Rome refers to Roman civilisation from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–509 BC ...

. The

ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...

drink '' oxymel'' is made from vinegar and honey, and ''

sekanjabin Sekanjabin ( fa, سکنجبین), one of the oldest Iranian drinks , is made of honey and vinegar. Sekanjabin is usually served in summer. It is sometimes seasoned with mint. Name ''Sekanjabin'' is a compound of "vinegar" and "honey", tran ...

'' is a traditional Persian drink similar to ''oxymel''. Other preparations, known colloquially as "

shrubs A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

", range from simply mixing sugar water or honey water with small amounts of fruity vinegar, to making syrup by laying fruit or mint in vinegar for several days, then

sieving A sieve, fine mesh strainer, or sift, is a device for separating wanted elements from unwanted material or for controlling the particle size distribution of a sample, using a screen such as a woven mesh or net or perforated sheet material. ...

off solid parts and adding considerable amounts of sugar. Some prefer to boil the "shrub" as a final step. These recipes have lost much of their popularity with the rise of carbonated beverages, such as soft drinks.

Diet and metabolism

Preliminary research indicates that consuming 2-4

tablespoon A tablespoon (tbsp. , Tbsp. , Tb. , or T.) is a large spoon. In many English-speaking regions, the term now refers to a large spoon used for serving; however, in some regions, it is the largest type of spoon used for eating. By extension, the ter ...

s of vinegar may cause small reductions in post-meal levels of

blood glucose Glycaemia, also known as blood sugar level, blood sugar concentration, or blood glucose level is the measure of glucose concentrated in the blood of humans or other animals. Approximately 4 grams of glucose, a simple sugar, is present in the blo ...

and insulin in people with

diabetes Diabetes, also known as diabetes mellitus, is a group of metabolic disorders characterized by a high blood sugar level ( hyperglycemia) over a prolonged period of time. Symptoms often include frequent urination, increased thirst and increased ...

Nutrition

Distilled or red wine vinegar is 95% water, with no

fat In nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such compounds, most commonly those that occur in living beings or in food. The term often refers specifically to triglycerides (triple est ...

protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...

. In a reference amount, distilled vinegar supplies of

food energy Food energy is chemical energy that animals (including humans) derive from their food to sustain their metabolism, including their muscular activity. Most animals derive most of their energy from aerobic respiration, namely combining the carbohy ...

and no micronutrients in significant content. The composition (and absence of nutrient content) for red wine vinegar and

apple cider vinegar Apple cider vinegar, or cider vinegar, is a vinegar made from fermented apple juice, and used in salad dressings, marinades, vinaigrettes, food preservatives, and chutneys. It is made by crushing apples, then squeezing out the juice. Bacteria a ...

are the same, whereas

is 77% water with 17% carbohydrates, per 100 mL, and contains no fat, protein, or micronutrients.

In folk medicine

Since antiquity,

folk medicine Traditional medicine (also known as indigenous medicine or folk medicine) comprises medical aspects of traditional knowledge that developed over generations within the folk beliefs of various societies, including indigenous peoples, before the ...

treatments have used vinegar, but no conclusive evidence from clinical research supports health claims of benefits for diabetes, weight loss,

cancer Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal b ...

, or use as a

probiotic Probiotics are live microorganisms promoted with claims that they provide health benefits when consumed, generally by improving or restoring the gut microbiota. Probiotics are considered generally safe to consume, but may cause bacteria- host ...

. A systematic review and meta-analysis later suggested it could help type 2 diabetics reduce insulin and glucose after meals. Some treatments with vinegar pose risks to health. Esophageal injury by apple cider vinegar has been reported, and because vinegar products sold for medicinal purposes are neither regulated nor standardized, such products may vary widely in content and acidity.

Cleaning

White vinegar is often used as a household cleaning agent. For most uses, dilution with water is recommended for safety and to avoid damaging the surfaces being cleaned. Because it is acidic, it can dissolve

mineral deposits In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2 ...

from glass,

coffee maker A coffeemaker, coffee maker or coffee machine is a cooking appliance used to brew coffee. While there are many different types of coffeemakers the two most common brewing principles use gravity or pressure to move hot water through coffee gr ...

s, and other smooth surfaces. Vinegar is known as an effective cleaner of stainless steel and glass. Malt vinegar sprinkled onto crumpled newspaper is a traditional, and still-popular, method of cleaning grease-smeared windows and mirrors in the United Kingdom. Vinegar can be used for polishing copper, brass, bronze or silver. It is an excellent

solvent A solvent (s) (from the Latin '' solvō'', "loosen, untie, solve") is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid. Water is a solvent for ...

for cleaning epoxy resin as well as the gum on sticker-type

price tag A price tag is a label declaring the price of an item for sale. It may be a sticker or attached by twist tie or other means. Some jurisdictions require items (possibly exceptions for bulk good and produce) to be individually marked with the pri ...

s. It has been reported as an effective

drain cleaner A drain cleaner is method for unblocking sewer pipes or clogged wastewater drains. The term may also refer to a mechanical device such as a plumber's snake, drain auger, toilet plunger, or similar device. Occasionally, the term is applied to a pl ...

Herbicide and sting relief

Twenty percent acetic acid vinegar can be used as a herbicide, but acetic acid is not absorbed into root systems so the vinegar will only kill the top growth and

perennial plant A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

s may reshoot. Applying vinegar to common

jellyfish Jellyfish and sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals with umbrell ...

stings deactivates the nematocysts, although not as effectively as hot water. This also applies to the

Portuguese man o' war The Portuguese man o' war (''Physalia physalis''), also known as the man-of-war, is a marine hydrozoan found in the Atlantic Ocean and the Indian Ocean. It is considered to be the same species as the Pacific man o' war or blue bottle, which is ...

, which, although generally considered to be a jellyfish, is not (it is a

siphonophore Siphonophorae (from Greek ''siphōn'' 'tube' + ''pherein'' 'to bear') is an order within Hydrozoa, which is a class of marine organisms within the phylum Cnidaria. According to the World Register of Marine Species, the order contains 175 specie ...

Reactions, byproducts, and regulation

Most commercial vinegar solutions available to consumers for household use do not exceed 5%. Solutions above 10% require careful handling, as they are corrosive and damaging to the skin. When a bottle of vinegar is opened, mother of vinegar may develop. It is considered harmless and can be removed by filtering. Vinegar eels (''Turbatrix aceti''), a form of nematode, may occur in some forms of vinegar unless the vinegar is kept covered. These feed on the mother of vinegar and can occur in naturally fermenting vinegar. Some countries prohibit the sale of vinegar over a certain percentage of acidity. As an example, the government of Canada limits the acetic acid of vinegars to between 4.1% and 12.3%, unless it is sold only for manufacturing use and identified as such. When

baking soda Sodium bicarbonate (IUPAC name: sodium hydrogencarbonate), commonly known as baking soda or bicarbonate of soda, is a chemical compound with the formula NaHCO3. It is a salt composed of a sodium cation ( Na+) and a bicarbonate anion ( HCO3� ...

and vinegar are combined, the

bicarbonate In inorganic chemistry, bicarbonate (IUPAC-recommended nomenclature: hydrogencarbonate) is an intermediate form in the deprotonation of carbonic acid. It is a polyatomic anion with the chemical formula . Bicarbonate serves a crucial biochem ...

ion of the baking soda reacts to form carbonic acid, which decomposes into carbon dioxide, water and sodium carbonate completing the

carbon cycle The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major componen ...

References

External links

* {{Use dmy dates, date=July 2019 Condiments Household chemicals Traditional medicine