L-Tartaric acid is abundant in nature, especially in fruits. Its primary commercial source is as a by product of the Drink industry. It is used as an additive in many foods, such as soft drinks, bakery products, and candies. Used as sour agent, a resolving agent and a pharmaceutical raw material. Industrial uses include tanning, ceramics manufacture, production of tartrate esters for lacquers and textile printing. Used as biochemical reagent, masking agent and foaming agent, used in tanning industry.