Sodium Benzoate & Sorbic Acid

Sodium benzoate and sorbic acid are commonly used together as preservatives in foods. Sodium benzoate is the sodium salt of benzoic acid, which occurs naturally in some fruits. Sorbic acid is a naturally occurring organic compound. Both are typically produced synthetically for food use.

These compounds work together to prevent the growth of mold, yeast, and bacteria, extending the shelf life of products. They are often found in acidic foods like syrups, jams, jellies, dressings, and pickled products.

Both sodium benzoate and sorbic acid are approved for use in the U.S. by the FDA. The FDA considers sodium benzoate Generally Recognized As Safe (GRAS) when used according to good manufacturing practices. Sorbic acid and its salts are also permitted food additives. Both have been evaluated by international bodies like JECFA and EFSA. Some studies have explored potential links between sodium benzoate and hyperactivity in children, but evidence is mixed and regulatory bodies have not established a causal link at typical consumption levels. When combined with ascorbic acid (Vitamin C) and exposed to heat, sodium benzoate can form small amounts of benzene, a carcinogen; however, levels are generally considered very low.