Vinegar  Natural Acetic Acid is a corrosive colorless liquid with characteristic odor and strongly acidic taste. It is completely soluble in water, alcohol, ether, and benzene. It is produced by aerobic fermentation of ethyl alcohol into vinegar by the use of Acetobacter. It is then filtered and concentrated by distillation. The biotechnological process makes the produced acetic acid a natural product of high purity.