Sodium Diacetate

Sodium diacetate is a chemical compound formed from sodium acetate and acetic acid, which is the main component of vinegar. It is typically produced by combining these two substances. This compound exists as a white, crystalline solid with a vinegar-like odor.

Manufacturers add sodium diacetate primarily as a preservative to inhibit the growth of certain bacteria and molds, thereby extending the shelf life of food products. It also functions as a flavor enhancer, imparting a mild vinegar taste, and as an acidity regulator. It is commonly found in processed meats like pepperoni and salami, snack foods such as chips, and some baked goods.

In the United States, the Food and Drug Administration (FDA) considers sodium diacetate to be Generally Recognized As Safe (GRAS). JECFA (the Joint FAO/WHO Expert Committee on Food Additives) has evaluated sodium diacetate and set an acceptable daily intake. EFSA (the European Food Safety Authority) has also evaluated its safety. At typical intake levels found in food, it is generally considered safe and is metabolized in the body similarly to other acetates.