Sodium Benzoate And Potassium Sorbate To Protect Flavor

Sodium benzoate and potassium sorbate are salts used together as preservatives. Sodium benzoate is the salt of benzoic acid, which occurs naturally in fruits like cranberries and plums. Potassium sorbate is the potassium salt of sorbic acid, which is produced synthetically.

These compounds work together to prevent the growth of mold, yeast, and bacteria, helping to keep foods fresh and safe. They are often found in acidic foods like salad dressings, carbonated drinks, jams, jellies, and pickles.

In the U.S., both sodium benzoate and potassium sorbate are generally recognized as safe (GRAS) by the FDA when used as preservatives. When combined with vitamin C (ascorbic acid) in certain beverages, sodium benzoate can form small amounts of benzene, a potential carcinogen. However, the FDA states that the levels of benzene formed are very low and not a health concern. Both substances have been evaluated by JECFA and EFSA, with no numeric limits set for their use.