E220: Sulphur dioxide
Food additive · Preservative, Antioxidant
What it does
- Preservative: Protects against spoilage by microbes.
- Antioxidant: Slows oxidation, such as fats going rancid.
Good to know
A sulphite. Above 10 mg/kg, sulphites must be declared as an allergen.
Other names on labels
Sulphur Dioxide, Calcium Sulphite, Natrii Sulfis, Potassium Bisulphite, Potassium Metabisulphite, Sodium Bisulphite, Sodium Metabisulfite, Sodium Metabisulphite, Sodium Sulfite
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Get IngrediLens on the App StoreInformation only, not medical advice. Always read the physical label. Source: EU Regulation (EC) No 1333/2008 Annex II.