Foods Containing E224 (Potassium Metabisulphite)
E224 (Potassium Metabisulphite) is a preservative (synthetic) used in bread and baked goods, wine and cider. Here are the foods where you'll find it on the label.
Common foods that contain E224
- bread and baked goods
- wine and cider
- cured meats
- cheese
- pickles and condiments
- soft drinks
In the UK and EU, E224 must be declared either as "E224" or as "Potassium Metabisulphite" in the ingredients list.
Is E224 safe?
E224 is authorised in the EU and UK but carries genuine concerns. E224 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 Potassium Metabisulphite 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.
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Reduce or replace E224
Products relevant to E224 and your dietary choices
Additive-Free Foods
Products without preservatives — great for sensitive diets.
Clean-Label Food Guide
Guides to buying and cooking without preservatives.
Food Intolerance Test
Confirm which preservatives, if any, are affecting you.
Frequently asked questions
What foods contain E224?
E224 (Potassium Metabisulphite) is commonly found in bread and baked goods, wine and cider, cured meats, cheese, pickles and condiments. It must be declared on UK/EU labels as either "E224" or "Potassium Metabisulphite".
Is E224 safe?
E224 is authorised in the EU and UK but carries genuine concerns. E224 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 Potassium Metabisulphite 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.
Is E224 vegan?
E224 is always vegan: synthetic.
Data: Open Food Facts (ODbL) · EFSA