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E252: Potassium nitrate

Also called: Saltpetre

Preservatives

What it does

Preserves cured meat and some cheeses.

What it is made from

Synthetic salt.

Allergies and diets

No allergy or diet concern is recorded for this additive. That is not a guarantee: the source can differ between makers, so check the label.

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

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