Potassium Sorbate & Sodium Benzoate As Preservatives

Potassium sorbate and sodium benzoate are salts of sorbic acid and benzoic acid, respectively. They are commonly produced synthetically. These compounds are effective at inhibiting the growth of mold, yeast, and some bacteria.

These preservatives are added to foods to extend shelf life by preventing spoilage. They are often used together in acidic foods like salad dressings, mayonnaise, and some baked goods. They work best in foods with a pH below 4.5.

Potassium sorbate and sodium benzoate are generally recognized as safe (GRAS) by the FDA for use as preservatives. Both compounds have been evaluated by JECFA and EFSA. Some studies have raised questions about potential links to hyperactivity in children, but evidence is mixed and not conclusive. At typical consumption levels found in food, they are not considered harmful.