How was vinegar discovered?

Vinegar is one of the oldest condiments known to humanity, with evidence of its production dating back to around 5000 B.C. It is believed to have been discovered during the process of winemaking, when winemakers noticed that their products turned sour after exposure to air. As the wine came into contact with oxygen, certain types of bacteria (primarily Acetobacter) and acetic acid-producing organisms in the air caused the fermentation of the alcohol inside the wine, and converted it into acetic acid - the main component of vinegar.

Early vinegar production wasn't a deliberate process but likely was initially considered spoiled wine in ancient societies. However, over time, as people started experimenting with the addition of bacteria strains and controlled fermentation methodologies, they gradually recognized and mastered the production of vinger . It eventually began to be deliberately created from various raw materials like grapes, apples, honey, dates, and grains, based on geographical region and availability. Through trial and error , vinegar making practices gradually improved across different civilization throughout history.