Sulfur Dioxide Used
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What it is
Sulfur dioxide is a gas that occurs naturally in small amounts. It is made industrially by burning sulfur or by heating metal sulfides. It is often used in food production as a preservative.
Why it's used
Sulfur dioxide and sulfites are used as preservatives in many foods. They help prevent spoilage by inhibiting the growth of bacteria, yeasts, and molds. They also act as antioxidants, preventing browning in dried fruits and vegetables.
Health notes
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 allergic-type reactions. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated sulfites and established acceptable daily intakes. EFSA has also evaluated sulfites and their use is permitted within specified limits.
Allergen info
Sulfur dioxide is not derived from any of the nine FDA major allergens. It does not contain gluten.