What is E221? Sodium Sulphite Explained
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E221 is Sodium Sulphite — a preservative (synthetic) used in bread and baked goods, wine and cider.
What is E221 (Sodium Sulphite)?
E221 is Sodium Sulphite, a food additive classified as a preservative that extend shelf life by preventing microbial growth. A preservative (synthetic) used in bread and baked goods, wine and cider. You'll find it in bread and baked goods, wine and cider, cured meats and many other packaged foods. Like every E-number, E221 has been authorised for use in food following an EFSA safety evaluation — though authorisation doesn't mean concern-free, as the safety section below explains.
Where is E221 found?
E221 (Sodium Sulphite) is found in bread and baked goods, wine and cider, cured meats, cheese, pickles and condiments, soft drinks.
- bread and baked goods
- wine and cider
- cured meats
- cheese
- pickles and condiments
- soft drinks
Is E221 safe?
E221 is authorised in the EU and UK but carries genuine concerns. E221 is a sulphite or sulphite-related additive — sulphites are declared allergens that can trigger asthma and respiratory reactions in sensitive people (estimated 5–10% of asthmatics). For most people consuming Sodium Sulphite in typical quantities, health effects are unlikely — but the caution flag reflects either active scientific debate, mandatory warning labels, allergen status, or conditions attached to its authorisation.
EFSA opinion: Sodium Sulphite — status Some concerns.
Check the calorie content of foods containing E221. If you’re pregnant, see our pregnancy food safety guide.
Cleaner alternatives to E221
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MORiSH Pork Chicharrónes
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E221 FAQs
What is E221 in food?
E221 is Sodium Sulphite — a preservative (synthetic) used in bread and baked goods, wine and cider.
Is E221 safe to eat?
E221 is authorised in the EU and UK but carries genuine concerns. E221 is a sulphite or sulphite-related additive — sulphites are declared allergens that can trigger asthma and respiratory reactions i
Is E221 vegan?
E221 (Sodium Sulphite) is vegan. It is derived from synthetic, with no animal involvement in standard food production.
Is E221 halal?
E221 (Sodium Sulphite) is halal. It is derived from synthetic, which involves no haram sources.
Related Preservatives additives
Also check: safe for cats? · safe for dogs? · calorie checker · medication interactions
Data: Open Food Facts (ODbL) · EFSA