Potassium Sorbate & Metabisulfite

Potassium sorbate is the potassium salt of sorbic acid. Sorbic acid is a naturally occurring organic compound found in some plants. It is typically produced industrially by reacting ketene with crotonaldehyde. Potassium sorbate is then made by neutralizing sorbic acid with potassium hydroxide.

Potassium sorbate and potassium metabisulfite are often used together as preservatives in foods and beverages. They work by inhibiting the growth of mold, yeast, and some bacteria, which helps extend shelf life. They are commonly found in products like dried fruits, wine, cheese, baked goods, and salad dressings.

Potassium sorbate is Generally Recognized As Safe (GRAS) by the FDA for use as a food additive. Potassium metabisulfite is also approved by the FDA as a preservative. Both have been evaluated by international bodies like JECFA and EFSA. While generally considered safe in typical amounts, some individuals may experience sensitivity or allergic reactions, particularly to sulfites. Evidence does not suggest adverse health effects at typical intake levels.