E285: Sodium tetraborate
Also called: Borax
What it does
Preserves (only allowed in sturgeon caviar).
What it is made from
Mined or synthetic.
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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