Uses of Sodium Metabisulfite in Food

Sodium metabisulfite is a common food additive with several important functions in the food industry. Its main uses include:

• Preservative: It prevents the growth of bacteria, yeast, and mold, helping to extend the shelf life of foods.
• Antioxidant: Sodium metabisulfite helps prevent oxidation, which can cause foods to spoil or discolor. This is especially important for dried fruits, wines, and juices.
• Bleaching Agent: It is used to lighten the color of some foods, such as coconut, flour, and sugar.
• Dough Conditioner: Used in baking, it helps improve dough texture and makes it easier to handle.
• Wine and Beer Production: It is used to sterilize equipment and to inhibit unwanted microbial activity during fermentation.

Sodium metabisulfite is listed as E223 in the list of food additives and should be used within regulated limits, as some individuals may be sensitive to sulfites.