Vinegar is h2o and Acetic Acid. The leading Part in the Acetic Acid may be the Acetyl Molecule.Acetobacter will be the microorganisms that converts Liquor into Acetic Acid (Vinegar) which happens to be ubiquitous. Just leave an open bottle of champange lying about for 2 months and Acetobacter will find it immediately and change it into wine vinegar