Last reviewed May 2026 · 1 min read
Is Sodium Potassium Tartrate vegan?
Also known as: Rochelle salt, E337
E-number: E337
Vegan
Suitable for a vegan diet.
Yes — Byproduct of winemaking.
01 · The basics
What is Sodium Potassium Tartrate?
A double salt used in baking powder.
02 · The source
Where it comes from
Byproduct of winemaking. 100% vegan.
Frequently asked
FAQ
Is Rochelle salt vegan?
Yes, it is derived from grapes.
Commonly found in
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