Last reviewed May 2026 · 1 min read
Is Tartaric Acid (E334) vegan?
Also known as: E334, L-tartaric acid, Cream of Tartar, Racemic acid
E-number: E334
Vegan
Suitable for a vegan diet.
Yes — Tartaric acid is primarily sourced from potassium bitartrate (cream of tartar), a crystalline deposit that forms in wine barrels during fermentation.
01 · The basics
What is Tartaric Acid (E334)?
A naturally occurring organic acid found in many plants, particularly grapes. It is used as an acidulant, antioxidant, and leavening agent in foods.
02 · The source
Where it comes from
Tartaric acid is primarily sourced from potassium bitartrate (cream of tartar), a crystalline deposit that forms in wine barrels during fermentation. Since it is derived from grapes, it is entirely plant-based and vegan.
Frequently asked
FAQ
Is tartaric acid the same as cream of tartar?
No, but they are related. Cream of tartar is the potassium salt of tartaric acid (potassium bitartrate). Tartaric acid is the parent acid from which cream of tartar is derived.
Can tartaric acid be non-vegan?
No, tartaric acid (E334) is commercially produced from the byproducts of wine production, which originates from grapes. The process does not involve animal ingredients.
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