Tartaric acid is a naturally occurring organic acid found in many fruits, particularly grapes. It is commonly used in food and beverage industries as a flavoring agent, acidulant, and stabilizer.

In food preparation, tartaric acid is often added to enhance the taste and tartness of certain dishes, such as jams, jellies, and fruit-flavored candies. It is also used in the production of wine to adjust acidity levels and improve flavor balance.