Last reviewed May 2026 · 1 min read

Is Sodium Citrates vegan?

Also known as: Sour salt, E331

E-number: E331

Vegan

Suitable for a vegan diet.

In short

Yes — Produced synthetically from plant-based citric acid.

01 · The basics

What is Sodium Citrates?

The sodium salts of citric acid, heavily used as flavorings and preservatives (like 'sour salt').

02 · The source

Produced synthetically from plant-based citric acid. It is 100% vegan.

Frequently asked

Is E331 vegan?

Yes, it is a synthetic mineral salt derived from plant acids.

Commonly found in

Club sodaEnergy drinksCheese sauces (emulsifier)

The main component of vinegar, used as an acidity regulator and preservative.

The potassium salt of acetic acid, used as a food preservative and acidity regulator.

A salt of citric acid used for flavor and as a preservative.

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