Sulfting Agents

Sulfiting agents are compounds containing sulfur dioxide. They are often added to foods to prevent spoilage and maintain color. Common examples include sodium sulfite, sodium bisulfite, and potassium metabisulfite.

Sulfiting agents act as antioxidants and preservatives, helping to keep foods fresh and visually appealing. They are frequently used in dried fruits, wine, processed potatoes, and some baked goods to prevent browning and inhibit microbial growth.

Sulfiting agents are permitted food additives in the U.S. and are generally recognized as safe (GRAS) by the FDA when used according to regulations. However, some individuals, particularly those with asthma, may be sensitive to sulfites and can experience allergic-type reactions. The FDA requires foods containing more than 10 parts per million of sulfites to be labeled. JECFA and EFSA have evaluated sulfiting agents and established acceptable daily intakes.