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'Vinegar' is a liquid produced from the fermentation of ethanol in a process that yields its key ingredient, acetic acid. The acetic acid concentration ranges typically from 4 to 8 percent by volume for table vinegar ^[1] (typically 5%) and higher concentrations for pickling (up to 18%) although in some countries the minimum strength may be less. Natural vinegars also contain smaller amounts of tartaric acid, citric acid, and other acids. It has been used since ancient times, and is an important element in Western and European, Asian, and other traditional cuisines of the world.
The word "vinegar" derives from the Old French ''vin aigre'', meaning "sour wine." Louis Pasteur showed in 1864 that vinegar results from a natural fermentation process.

Contents

Chemical Properties

pH Value

Density

History

Production

Types of vinegar

White

Malt

Wine

Apple cider

Fruit

Balsamic

Rice

Coconut

Cane

Raisin

Date

Beer

Honey

East Asian black

Flavored vinegars

Kombucha

Culinary uses

Medicinal uses

Cholesterol

Blood glucose control and diabetic management

Diet control

Treatment for jellyfish stings

Traditional and anecdotal treatments

Veterinary treatment

Cleaning uses

Agricultural and horticultural uses

As a herbicide

Miscellaneous

References

See also

External links

Chemical Properties

pH Value

The pH of vinegar is typically in the range of 2 to 3.5, depending on the concentration of acetic acid. Commercially available vinegar usually has a pH of about 2.4.

Density

Vinegar has a density of approximately 0.96 g/mL. The density level depends on the acidity of the vinegar.

History

Vinegar has been made and used by people for thousands of years. Traces of it have been found in Egyptian urns from around 3000 BC.[1]
In the Bible, it is mentioned as something not very pleasant (Ps. 69:21, Prov. 25:20), but Boaz allows Ruth to "dip her piece of bread in the vinegar" (Ruth 2:14). Nazirites, on the other hand, were not allowed to drink either wine vinegar or malt vinegar. Jesus was offered vinegar while on the cross according to the King James version of the Bible, yet actually it was sour wine or wine that was turning which was given out by women of charity to comfort people dying on the cross as this was a common daily occurrence as a Roman punishment of the time.

Production

Vinegar is made from the oxidation of ethanol in wine, cider, beer, fermented fruit juice, or nearly any other liquid containing alcohol.
Commercial vinegar is produced either by fast or slow fermentation processes. Slow methods are generally used with traditional vinegars and fermentation proceeds slowly over the course of weeks or months. The longer fermentation period allows for the accumulation of a nontoxic slime composed of acetic acid bacteria and soluble cellulose, known as the mother of vinegar. Fast methods add mother of vinegar (i.e. bacterial culture) to the source liquid and then add air using a venturi pump system or a turbine to promote oxygenisation to give the fastest fermentation. In fast production processes, vinegar may be produced in a period ranging between 20 hours and three days.
Vinegar eels (''Turbatrix aceti''), a form of nematode, may occur in some forms of vinegar. These feed on the mother and occur in naturally fermenting vinegar.^[1] Most manufacturers and pasteurize their product before bottling to eliminate any potential adulteration.

Types of vinegar

White

So-called "white vinegar" (actually transparent in appearance), or sometimes referred to as spirit vinegar^[3], can be made by oxidizing a distilled alcohol.
Alternatively, it may be nothing more than a solution of acetic acid in water. Most commercial white vinegars are 5% acetic acid solutions, although some US states such as Virginia have laws prohibiting the sale of any product not made from acetous fermentation of alcohol as vinegar. They are made from grain (often maize) and water.
White vinegar is typically stronger and sharper than other vinegars, and as such is used in pickling recipes. It is also used for cleaning purposes.

Malt

Malt vinegar is made by malting barley, causing the starch in the grain to turn to maltose. An ale is then brewed from the maltose and allowed to turn into vinegar, which is then aged. It is typically light brown in color.
A cheaper alternative, called "non-brewed condiment," is a solution of 4-8% acetic acid colored with caramel (usually E150). There is also around 1-3% citric acid present. Non-brewed condiment is more popular in the North of England, and gained popularity with the rise of the Temperance movement .

Wine

Wine vinegar is made from red or white wine, and is the most commonly used vinegar in Mediterranean countries and Central Europe. As with wine, there is a considerable range in quality. 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 less acidity than that of white or cider vinegars. There are more expensive wine vinegars made from individual varieties of wine, such as Champagne, Sherry, or pinot grigio.

Apple cider

Apple cider vinegar, otherwise known simply as cider vinegar, is made from cider or apple must, and is often sold unfiltered, with a brownish-yellow color; it often contains mother of vinegar. It is currently very popular, partly due to its alleged beneficial health and beauty properties (see below). Due to its acidity, apple cider vinegar can be very caustic, even burning the throat. If taken straight (as opposed to usage in cooking), it should be diluted (e.g. with fruit juice) before drinking. Others dilute it with warm water and add some honey.^[4]
There have been reports of acid chemical burns of the throat in using the pill form.^[5]

Fruit

Fruit vinegars are made from fruit wines usually without any additional flavouring. Common flavors of fruit vinegar include apple, black currant, raspberry, quince, and tomato. Typically, the flavors of the original fruits remain tasteable in the final vinegar.
Most such vinegars are produced in Europe, where there is a growing market for high price vinegars made solely from specific fruits (as opposed to non-fruit vinegars which are infused with fruits or fruit flavors). Persimmon vinegar is popular in South Korea, and jujube vinegar is produced in China.^[6] ''Umeboshi'' vinegar, a salty, sour liquid that is a by-product of ''umeboshi'' (pickled ''ume'') production, is produced in Japan but is technically not a true vinegar.

Balsamic

Balsamic vinegar is an aromatic, aged type of vinegar traditionally manufactured in Modena, Italy, from the concentrated juice, or must, of white grapes (typically of the Trebbiano variety). It is very dark brown in color and its flavor is rich, sweet, and complex, with the finest grades being the end product of years of aging in a successive number of casks made of various types of wood (including oak, mulberry, chestnut, cherry, juniper, ash, and acacia). Originally an artisanal product available only to the Italian upper classes, balsamic vinegar became widely known and available around the world in the late 20th century. True balsamic is aged between 3 - 12 years. One can sometimes even find balsamics that have been aged for up to 100 years, though they are very expensive.^[7]
[8] The commercial balsamic sold in supermarkets is typically made with red wine vinegar or concentrated grape juice mixed with a strong vinegar which is laced with caramel and sugar. However produced, balsamic needs to be made from a grape product.
Balsamic has a high acid level, but the sweetness covers the tart flavor, making it very mellow.

Rice

Rice vinegar is most popular in the cuisines of East and Southeast Asia. It is available in white (actually light yellow), red, and black variants. The Japanese prefer a light and more delicate rice vinegar for the preparation of sushi rice and salad dressings. Red rice vinegar is traditionally colored with red yeast rice, although some Chinese brands use artificial food coloring instead.^[9] Black rice vinegar (made with black glutinous rice) is most popular in China, although it is also produced in Japan (see East Asian black, below).⁹ It may be used as a substitute for balsamic vinegar, although its dark color and the fact that it is aged may be the only similarity between the two products.
Some varieties of rice vinegar are sweetened or otherwise seasoned with spices or other added flavorings.

Coconut

Coconut vinegar, made from the sap, or "toddy," of the coconut palm, is used extensively in Southeast Asian cuisine (particularly in the Philippines, a major producer of the product), as well as in some cuisines of India. A cloudy white liquid, it has a particularly sharp, acidic taste with a slightly yeasty note.

Cane

Cane vinegar, made from sugar cane juice, is most popular in the Ilocos Region of the northern Philippines (where it is called ''sukang iloko''), although it is also produced in France and the United States. 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. Contrary to expectation, it is not sweeter than other vinegars, containing no residual sugar. In the Philippines, it is often labeled as ''sukang maasim'', although this is simply a generic term meaning "sour vinegar."

Raisin

Vinegar made from raisins is used in cuisines of the Middle East, and is produced in Turkey. It is cloudy and medium brown in color, with a mild flavor.^[10][11]

Date

Vinegar made from dates is a traditional product of the Middle East.^[12]

Beer

Vinegar made from beer is produced in Germany, Austria, and the Netherlands. Although its flavor depends on the particular type of beer from which it is made, it is often described as having a malty taste. That produced in Bavaria is a light golden color, with a very sharp and not overly complex flavor.^[13]

Honey

Vinegar made from honey is rare, though commercially available honey vinegars are produced in Italy and France.

East Asian black

Chinese black vinegar is an aged product made from rice, wheat, millet, or sorghum, or a combination thereof. It has an inky black color and a complex, malty flavor.^[14] There is no fixed recipe and thus some Chinese black vinegars may contain added sugar, spices, or caramel color. The most popular variety, Chinkiang vinegar, originated in the city of Zhenjiang, in the eastern coastal province of Jiangsu, China^[15], and is also produced in Tianjin and Hong Kong.
A somewhat lighter form of black vinegar, made from rice, is also produced in Japan, where it is called ''kurozu''. Since 2004 it has been marketed as a healthful drink; its manufacturers claim that it contains high concentrations of amino acids.^[16][17][18]

Flavored vinegars

Popular ''fruit-flavored vinegars'' include those infused with whole raspberries, blueberries, or figs (or else from flavorings derived from these fruits). Some of the more exotic fruit-flavored vinegars include blood orange and pear.
''Herb vinegars'' are flavored with herbs, most commonly Mediterranean herbs such as thyme or oregano. Such vinegars can be prepared at home by adding sprigs of fresh or dried herbs to store-bought vinegar; generally a light-colored, mild tasting vinegar such as that made from white wine is used for this purpose.
''Red vinegar'' is of Cantonese origin and is made from rice wine, sugar and herbs including ginger, cloves and other spices.
''Spiced vinegar'', from the Philippines (labeled as spiced ''sukang maasim''), is flavored with chili peppers, onions, and garlic.^[19][20]

Kombucha

Kombucha vinegar, also referred to as probiotic vinegar, is made from kombucha, a symbiotic culture of yeast and bacteria. The bacteria produce a complex array of nutrients and populate the vinegar with symbiotic bacteria which some claim promote a heathy digestive tract, though no scientific studies have shown this to date. Kombucha vinegar is primarily used to make a vinaigrette and flavored by adding strawberries, blackberries, mint, or blueberries at the beginning of fermentation.

Culinary uses

Vinegar is commonly used in food preparation, particularly in pickling processes, vinaigrettes, and other salad dressings. It is an ingredient in sauces such as mustard, ketchup, and mayonnaise. Vinegar is an essential component of chutneys. It is often used as a condiment. Marinades often contain vinegar.

★ Condiment for fish and chips - Britons commonly use ''malt vinegar'' (or non-brewed condiment) on chips; it may be used in other territories where British-style fish and chips are served.

★ Flavouring for potato chips - In the case of American-style chips or crisps, many manufacturers of pre-packaged potato chips/crisps feature a variety flavored with vinegar and salt.

★ Condiment for French Fries, particularly in the Northeastern United States and Canada.

★ Vinegar pie - is a North American dessert made with a vinegar to one's taste.^[21]

★ Pickling - any vinegar can be used to pickle foods.

★ Cider vinegar and sauces - ''cider vinegar'' is not usually suitable for use in delicate sauces.

★ Substitute for lemon juice - ''cider vinegar'' can usually be substituted for lemon juice in recipes and obtain a pleasing effect.

★ Saucing roast lamb - pouring ''cider vinegar'' over the meat when roasting lamb, especially when combined with honey or when sliced onions have been added to the roasting pan, produces a tasty sauce.

★ Sweetened vinegar (see ''Flavored vinegars'' above) is used in the dish of Pork Knuckles and Ginger Stew which is made among Chinese people of Cantonese backgrounds to celebrate the arrival of a new child.^[22]

★ Sushi rice - Japanese use ''rice vinegar'' as an essential ingredient for sushi rice.

★ Red vinegar - Sometimes used in Chinese soups

Medicinal uses

Many remedies and treatments have been ascribed to vinegar over millennia in many different cultures. However, few have been verifiable using controlled medical trials and several that are effective to some extent have significant risks and side effects.

Cholesterol

A scientific study published in 2006 concluded that a test group of rats fed with acetic acid (the main component of vinegar) had "significantly lower values for serum total cholesterol and triacylglycerols", among other health benefits. ^[23]

Blood glucose control and diabetic management

Small amounts of vinegar (approx. 20 mls or two tablespoons of domestic vinegar) added to food, or taken along with a meal, have been shown by a number of medical trials to reduce the glycemic index of carbohydrate food for people with and without diabetes.^[24][25][26] This has also been expressed as lower glycemic index ratings in the region of 30%.^[27][28]

Diet control

Multiple trials indicate that taking vinegar with food increases satiety (the feeling of fullness) and so reduces the amount of food consumed.^[29][30] Even a single application of vinegar can lead to reduced food intake for a whole day.^[31]

Treatment for jellyfish stings

Applying vinegar to jellyfish stings deactivates the nematocysts. However, placing the affected areas into hot-water is a more effective treatment because the venom is deactivated by heat. The latter requires immersion in 45 degrees celsius (113 F) water for at least four minutes for the pain to be reduced to less than that of vinegar.^[32] However, vinegar should not be applied to portuguese man o' war stings, since their venom is different and vinegar can actually cause the nematocysts from their venom to discharge, making the pain worse.^[33] The hot water immersion or cold ice pack treatments have been shown to be the best for treatment of portuguese man o' war stings.^[34]

Traditional and anecdotal treatments

★ Hippocrates prescribed vinegar for many ailments, from skin rash to ear infection.

★ Vinegar is a folk medicine used in China to prevent the spread of virus such as SARS (Severe Acute Respiratory Syndrome) and other pneumonia outbreaks:

★ In February 2003, an outbreak in China's Guangdong province of an atypical pneumonia caused massive demand and soaring prices for vinegar, isatis root, and other medicines believed to to be useful in killing the infectious agent.^[35]

★ The therapeutic use of vinegar is recorded in the second verse of the nursery rhyme “Jack and Jill”: “Went to bed and bound his head / With vinegar and brown paper.” As with some nursery rhymes, there is truth in the story. The vinegar used would likely have been cider vinegar.

★ Apple cider vinegar is a much more useful astringent than ice and will reduce inflammation, bruising and swelling in approximately a third of the time that ice will take. Application is directly onto the skin with a flannel, and left on for an hour or so.

★ Apple cider vinegar in particular is often touted as a medical aid, from cancer prevention to alleviation of joint pain to weight loss.^[36] Claims of its benefits go back at least to Hippocrates. In 1958, Dr. D. C. Jarvis made the remedy popular with a book that sold 500,000 copies.

★ Claims that cider vinegar can be used as a beauty aid also persist, it is a powerful remedy for Acne skin conditions when diluted 50:50 with water and used as a toner, ^[37] despite the fact that apple cider vinegar can sometimes be very dangerous to the eyes. The acid will burn and the eyes will become red, but no damage to the eyes has ever been described. If the vinegar contains mother of vinegar the slime bacteria of the mother can cause Ophthalmia neonatorum.

★ Many believe that vinegar is also a cure to mild to moderate sunburn when soaked on the area with a towel or in a bath.

★ Cider vinegar is also claimed to be a solution to dandruff, in that the acid in the vinegar kills the fungus ''Malassezia furfur'' (formerly known as ''Pityrosporum ovale'') and restores the chemical balance of the skin.

★ Cider vinegar is a natural remedy for yeast infections, when diluted with water and used as a douche.^[38]

Veterinary treatment

Vinegar along with hydrogen peroxide (H₂O₂) is used in the livestock industry to kill bacteria and viruses before refrigeration storage. A chemical mixture of peracetic acid is formed when acetic acid is mixed with hydrogen peroxide. It is being used in some Asian countries by aerosol sprays for control of pneumonia. A mixture of five-percent acetic acid and three-percent hydrogen peroxide is commonly used.
Apple cider vinegar can be used to prevent some problems in the digestive systems of dogs, such as E. Coli. The vinegar is acidic until it enters the dog's body, and it lines its intestines. E. coli cannot attach to an alkaline vinegar-coated intestine.

Cleaning uses

White vinegar is often used as a natural household cleaning agent. With most such purposes dilution with water is recommended for safety, reduced risk of damaging certain surfaces, and budgetary reasons. It is especially useful for cleaning mineral deposits on glass, inside a coffee maker, or other smooth surfaces. Care should be taken to not allow contact with eyes (if such contact occurs, the eyes should be flushed immediately and persistently with warm water) or skin (the affected skin area should be washed thoroughly after use). See Household chemicals.

Agricultural and horticultural uses

As a herbicide

Vinegar can be used as a herbicide as shown by scientific trials reported by the US Dept of Agriculture in 2002.^[39] Vinegar made from natural products classified as organic and so there is interest in it being used on farms/orchards/gardens certified as organic. The trials showed that a number of common weeds could be effectively controlled using vinegar with 5% to 20% acetic acid. The lower concentration is less effective. A crop of corn can be sprayed with vinegar at 20% strength without causing harm to that crop and so it can be used to help keep a corn crop clear of weeds.
Acetic acid is not absorbed into root systems and so vinegar will kill top growth but perennial plants will reshoot.^[40]
Commercial vinegar available to consumers for household use does not exceed 5% and solutions above 10% need careful handling since they are corrosive and damaging to skin. Stronger solutions (i.e. greater than 5%) that are labeled for use as herbicides are available from some retailers.^[41]

Miscellaneous

★ When a bottle of vinegar is opened, mother of vinegar may develop. It is considered harmless and can be removed by filtering.

★ When vinegar is added to sodium bicarbonate (baking soda), it produces a volatile mixture of carbonic acid rapidly decomposing into water and carbon dioxide bubbles, making the reaction "fizz". It is exemplified as the typical acid-base reaction in school science experiments. The salt that is formed is sodium acetate.

★ Vinegar is a very effective way to remove rust from metals.

★ A combination of salt and vinegar makes a good cleaner for brass and copper surfaces, also good for chips too. :)

★ Vinegar neutralizes lye, a strong base.

★ Some countries, Canada as an example, prohibit the selling of vinegar over a certain percentage acidity.

★ According to the Prophet Muhammed, vinegar is one of the best condiments (Ref. Sahih Muslim Book 023, Number 5091).

★ Lord Byron would consume vast quantities of white vinegar in an attempt to keep his complexion pale.

★ Some people also believe that vinegar can be used as a detoxification agent for marijuana, but this is myth.^{[42][43][44][45]}>^[46]

★ Posca, a Roman legionaries' basic drink was vinegar mixed with water and optional honey.^[47]

References

1. FDA: Sec. 525.825 Vinegar, Definitions - Adulteration with Vinegar Eels (CPG 7109.22)
2. FDA: Sec. 525.825 Vinegar, Definitions - Adulteration with Vinegar Eels (CPG 7109.22)
3. White Vinegar
4. Apple Cider Vinegar and Honey
5. Esophageal Injury by Apple Cider Vinegar Tablets and Subsequent Evaluation of Products, , L., et al, Hill, Journal of the American Dietetic Association, 2005
6. Tianjiaohong.com
7. fortnumandmason.com
8. Farawayfoods.com
9. Yamatohk main
10. [2]
11. Vintagefood.com
12. Machramco
13. Germandeli
14. patchun.com
15. Newsasianweek
16. Export Saraya
17. [3]
18. Web-Japan.org
19. Yoaxia.de
20. Orientalsuper-mart
21. Vinegar Pie
22. New babies
23. Dietary acetic acid reduces serum cholesterol and triacylglycerols in rats fed a cholesterol-rich diet., , Takashi 1, et al, Fushimi, British Journal of Nutrition, May 2006
24. Liljeberg H, Bjorck I. Delayed gastric emptying rate may explain improved glycemia in healthy subjects to a starchy meal with added vinegar. Eur J Clin Nutr. 1998;64:886-893
25. Leeman M, Ostman E, Bjorck I. Vinegar dressing and cold storage of potatoes lowers postprandial glycemic and insulinaemic responses in healthy subjects. Eur J Clin Nutr. 2005;59:1266-1271
26. Johnston CS, Kim CM, Buller AJ. Vinegar improves insulin sensitivity to a high carbohydrate meal in subjects with insulin resistance or type 2 diabetes mellitus. Diabetes Care. 2004;27:281-282
27. Sugiyama M, Tang AC, Wakaki Y, Koyama W. Glycemic index of single and mixed meal foods among common Japanese foods with white rice as a reference food. Eur J Clin Nutr. 2003;57:743-752
28. Ostman EM, Liljeberg Elmstahl HG, Bjorck IM. Inconsistency between glycemic and insulinemic responses to regular and fermented milk products. Am J Clin Nutr. 2001;74:96-100
29. Ostman E, Granfeldt Y, Persson L, Bjorck I. Vinegar supplementation lowers glucose and insulin responses and increases satiety after a bread meal in healthy subjects. Eur J Clin Nutr. 2005;59,983-988
30. [High-glycemic index foods, hunger, and obesity: is there a connection?Roberts SB. High-glycemic index foods, hunger, and obesity Is there a connection? Nutr Rev. 2000;58:163-169]
31. Carb and weight control through acetic acid?
32. A randomized paired comparison trial of cutaneous treatments for acute jellyfish (Carybdea alata) stings
33. Diving article on Portugese Man 'o Wars and their sting treatment
34. Scientific study on the effectiveness of hot water immersion versus ice packs for the treatment of Physalia sp. (bluebottle or Portuguese Man-of-War) stings.
35. "Guangdong Brings Atypical Pneumonia under Control, ''People's Daily Online'', dated 13 February 2003, retrieved 11 February 2007
36. The sour truth about apple cider vinegar - evaluation of therapeutic use
37. Beautiful Skin Tip: Apple Cider Vinegar
38. How to Treat a Yeast Infection Naturally
39. Spray Weeds With Vinegar?
40. Vinegar as herbicide
41. Conquer Weeds with Vinegar?
42. Schaffer Library of Drug Policy
43. Fooling the Bladder Cops
44. Drug Testing Your Child
45. Can you get marijuana out of your system with vinegar?
46. Cider Vinegar Treatments?
47. Roman food and drink

See also

★ Food additive

★ Acetic acid

External links

★ The Vinegar Institute

★ Pesticides Database - Acetic Acid

★ Medscape - Vinegar: Medicinal Uses and Antiglycemic Effect

★ Vinegar Connoisseurs International

★ Vinegar.org

★ Weird Facts - 50 Uses for Vinegar