Calcium Propionate & Potassium Sorbate

Calcium propionate and potassium sorbate are salts of propionic acid and sorbic acid, respectively. These acids are naturally found in some plants and fermented foods, but are typically produced industrially for food use. They are commonly used together as antimicrobial preservatives.

These compounds are added to foods to inhibit the growth of mold, yeast, and bacteria, thereby extending shelf life. They are frequently found in baked goods like breads, cakes, and pastries, as well as in some dairy products and processed meats.

In the United States, both calcium propionate and potassium sorbate are generally recognized as safe (GRAS) by the FDA when used as preservatives. International bodies like JECFA and EFSA have also evaluated these substances. While generally considered safe at typical consumption levels, some studies have explored potential links to behavioral issues in children, though evidence is mixed and not conclusive.