Is Sodium Potassium Tartrate vegan?

Sodium Potassium Tartrate

Vegan

Sodium potassium tartrate, also known as Rochelle salt, is a double salt of tartaric acid with sodium and potassium. It is naturally derived from grapes and wine production byproducts, and is used as a sequestrant and stabiliser in food and cosmetic applications.

Also known as Potassium sodium tartrate, Rochelle salt, Seignette salt
E number E337
Last reviewed 22 April 2026

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