Last reviewed May 2026 · 1 min read

Is Tartaric Acid vegan?

Also known as: E334, Dihydroxybutanedioic acid

E-number: E334

Vegan

Suitable for a vegan diet.

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In short

Yes — It is harvested as a byproduct of the wine industry.

01 · The basics

What is Tartaric Acid?

A white, crystalline organic acid that occurs naturally in many fruits, most notably in grapes.

02 · The source

Where it comes from

It is harvested as a byproduct of the wine industry. It is 100% plant-based.

03 · Alternatives

Best vegan alternatives

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Frequently asked

FAQ

Is E334 vegan?

Yes, it is derived from grapes.

Commonly found in

Sour candiesBaking powderWineJams
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