When it comes to sodium metabisulfite, it may be relatively unfamiliar, but food-grade sodium metabisulfite is more used in many industries, and food-grade is one of the commonly used food additives.
Sodium metabisulfite is a white or yellow crystalline powder or small crystal, soluble in aqueous solution is acidic, contact with strong acid will generate the corresponding salts, long-term placed in the air will be oxidized.
Food grade sodium metabisulfite can be used to bleach in the flour needed to make biscuits, pastries and other foods. It can make bread, biscuits and other foods become loose, the taste is more crisp. Adding sodium metabisulfite to fruit juice and cans can increase its shelf life, and better sterilization plays a role in antiseptic sterilization. As an antioxidant preservative, it has a relatively good antioxidant effect and preservation effect on seafood and fruits and vegetables.
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