Sulfur Dioxide Used To Protect Quality

Sulfur dioxide is a gas that occurs naturally in small amounts. It is produced industrially by burning sulfur or by heating metal sulfides. It is commonly used in food production as a preservative.

Sulfur dioxide and sulfites are used to prevent spoilage and maintain the color and flavor of foods. They act as antioxidants and antimicrobial agents. They are often found in dried fruits, wines, and processed potatoes.

Sulfur dioxide is generally recognized as safe (GRAS) by the FDA when used as a preservative. However, some individuals, particularly those with asthma, may be sensitive to sulfites and experience reactions. JECFA and EFSA have evaluated sulfites and established acceptable daily intakes. Evidence on the health effects of sulfites at typical consumption levels is mixed, with some studies suggesting potential adverse effects in sensitive individuals.