what is source of vinegar
Although acetic acid is the primary constituent of vinegar aside from water, acetic acid is not vinegar. Vinegar contains many vitamins and other compounds not found in acetic acid such as riboflavin, Vitamin B-1 and mineral salts from the starting material that impart vinegar with its distinct flavor.  Wine vinegar or Grape vinegar is made from the two-fold fermentation of the juice of grapes.    Malt vinegar, made by the two-fold fermentation of barley malt or other cereals where starch has been converted to maltose.
Vinegar is a liquid consisting mainly of acetic acid (CH 3 COOH) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria.Vinegar is now mainly used as a cooking ingredient.Historically, as the most easily available mild acid, it had a great variety of industrial, medical and domestic uses, some of which (such as its use as a general household cleanser) are still promoted today.he term distilled vinegar 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 2.4.