Sodium Sulfite As Preservative

Sodium sulfite is a chemical compound that is white or slightly yellowish in color. It is made by combining sulfur dioxide gas with a sodium compound, such as sodium carbonate or sodium hydroxide. It is used in various industrial applications, including as a preservative.

Sodium sulfite acts as a preservative and antioxidant in food. It helps prevent spoilage by inhibiting the growth of bacteria and other microorganisms. It is often found in dried fruits, processed potatoes, and some baked goods to maintain color and freshness.

Sodium sulfite is permitted by the FDA as a food additive. It is generally recognized as safe (GRAS) for use as a preservative. However, some individuals, particularly those with asthma, may be sensitive to sulfites and experience allergic-type reactions. JECFA and EFSA have evaluated sulfites and established acceptable daily intakes.