CheckVegan

Is Sodium Hydrogen Sulphite vegetarian?

Sodium Hydrogen Sulphite

Vegetarian Vegetarian
Vegan Vegan

Sodium hydrogen sulphite (sodium bisulphite) is an inorganic sulphite compound used as a preservative, antioxidant, and reducing agent in food and beverage products. It prevents browning and microbial spoilage.

Also known as Sodium bisulfite, Sodium bisulphite, Sodium hydrogen sulfite, Sodium hydrogensulphite
INCI name Sodium Hydrogen Sulphite
E number E222
INS number 222
EC number 231-548-0
CosIng ID 37740
Last reviewed 22 April 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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