Sodium Bisulfite
Also known as: Sodium Hydrogen Sulfite
AntioxidantsPreservatives
Safety rating
Use Sparingly
Eat Away!Generally SafeUse SparinglyAvoid
Purpose and Function
Sodium Bisulfite (E222) is used in the food industry as a preservative and antioxidant. It helps prevent spoilage, browning, and oxidation in various products, thereby extending shelf life. It is particularly effective in acidic environments.
Commonly found in
- —Dried fruits and vegetables (prevents browning)
- —Wines, ciders, and fruit juices
- —Fresh and frozen seafood
- —Baked goods
- —Sauces, pickles, and condiments
Key functions
- —Prevents spoilage and browning
- —Inhibits microbial growth and oxidation
Potential Risks and Side Effects
- 01Can cause allergic reactions, especially in individuals with asthma
- 02Sulfite-sensitive individuals may experience headaches, nausea, or digestive discomfort
- 03Subject to strict regulatory limits and labeling requirements
- 04Can degrade certain vitamins, such as vitamin B1 (thiamine)