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Vinegar is a versatile liquid that results from the fermentation of ethanol. The key ingredient of vinegar is acetic acid.
The etiology of the word vinegar comes from the Old French vin aigre, which translates into "sour wine." Vinegaris made from the oxidation of ethanol in an alcohol-containing liquid, such as wine, fermented fruit juice, or beer. There are two processes of fermentation that differ by speed of production. While the fast fermentation process takes only hours to days, it requires the use of machinery to promote the oxygenation...