Why is Sodium Metabisulfite Used in Food?

Sodium metabisulfite is a chemical compound commonly used in the food industry for several important reasons:

• Preservative:
  It helps to inhibit the growth of bacteria, molds, and yeasts, thereby extending the shelf life of food products.
• Antioxidant:
  Sodium metabisulfite prevents oxidation, which can cause discoloration and spoilage, especially in dried fruits, wines, and juices.
• Color Retention:
  It helps preserve the natural color of foods such as potatoes and dried fruits by slowing down enzymatic browning.
• Improving Dough:
  In baking, it relaxes dough and improves its texture.
• Cleaning Agent:
  It is sometimes used to sanitize food processing equipment.

Overall, sodium metabisulfite is valued in the food industry for its ability to preserve, protect, and enhance the appearance and quality of various food products.