The first vinegar was probably a result of spoiled wine ,considering that the Latin word acetum means sour or sharp wine . Thus, it has been produced as long as wine making has been practiced and therefore dates back to at least 10000 BC. Acetic acid was used as a medicinal agent and was probably the first known antibiotic. Vinegar is traditionally the product of acetic acid fermentation of dilute alcoholic solutions. At the present it is produced microbiologically from natural alcoholic solutions (10-15% by volume of ethyl alcohol) or by dilution of acetic acid.