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E 222Preservatives

Sodium hydrogen sulphite

Characteristics

Additive NameSodium hydrogen sulphite
E No.E 222
TypeIndividual Substance
In plain language

A synthetic preservative and antioxidant, typically used to prevent browning and microbial spoilage. Found in a very narrow range of products — its authorisation covers just one food category. Sulphite compounds as a group are known allergens, particularly for people with asthma. Even small amounts can trigger breathing difficulties, hives, or digestive issues in sensitive individuals. Generally considered safe for most people at permitted levels, but always worth checking labels if you have sulphite sensitivity.

Source

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E 222 - Sodium hydrogen sulphite | E-Number Information