Vinegar is h2o and Acetic Acid. The key Aspect during the Acetic Acid will be the Acetyl Molecule. Acetobacter will be the microorganisms that converts Liquor into Acetic Acid (Vinegar) and it really is ubiquitous. Just go away a wide open bottle of wine offered for two months and Acetobacter will see it speedily and convert it into wine vinegar.