And Sodium Metabisulfite

Sodium metabisulfite is a white or slightly yellowish crystalline powder. It is a salt of sulfurous acid, commonly produced by reacting sulfur dioxide with a solution of sodium carbonate or sodium hydroxide. It is often used as a preservative and antioxidant in food products.

Sodium metabisulfite is used as a preservative and antioxidant in many food products. It helps prevent spoilage by inhibiting the growth of bacteria and fungi, and it can also prevent browning in fruits and vegetables. It is frequently found in dried fruits, wine, and processed potato products.

In the US, sodium metabisulfite is generally recognized as safe (GRAS) by the FDA when used according to good manufacturing practices. It can cause allergic-type reactions in some individuals, particularly those with asthma. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) and the European Food Safety Authority (EFSA) have evaluated sodium metabisulfite, and both have established acceptable daily intakes. Evidence regarding its effects at typical dietary levels is mixed, with some studies suggesting potential benefits and others raising concerns.