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E220: Sulphur dioxide

Also called: Sulfur dioxide, Sulphite

Preservatives

What it does

Preserves and stops browning (dried fruit, wine, juice, potato products).

What it is made from

Made industrially.

Allergies and diets

Must be declared on the label if more than 10 mg per kilo or litre. It can trigger asthma in sensitive people.

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General information, not medical advice. Sources differ between manufacturers: check the label or ask the maker.

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