Vinegar is water and Acetic Acid. The key Section within the Acetic Acid may be the Acetyl Molecule.Acetobacter could be the germs that converts Liquor into Acetic Acid (Vinegar) which is ubiquitous. Just leave a bottle of champange lying close to for 2 months and Acetobacter will find it rapidly and convert it into wine vinegar. Acetobacter can be