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E220–E228 — Sulphites family

A family of preservatives — sulphur dioxide (E220), sodium sulphite (E221), sodium bisulphite (E222), sodium metabisulphite (E223), potassium metabisulphite (E224), calcium sulphite (E226), calcium bisulphite (E227) and potassium bisulphite (E228) — that prevent browning and microbial growth.

Allergen connection

Sulphites can trigger asthma-like reactions in sensitive people. Both the EU and US require declaration above 10 mg/kg (“contains sulphites”). Any E-number from E220 to E228 on a label means the product falls under Scallergy’s sulphites matching.

🧪 Sulphites

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Scallergy checks ingredient lists — including allergen-derived additives and hydrolysed proteins — against your personal allergen profile, and tells you honestly when data is missing.

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Scallergy is assistive, not medical advice. Additive sourcing varies by manufacturer — when the source matters for a severe allergy, confirm with the producer and your allergist. Sources: EU Regulation 1169/2011; our data sources.

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