Last reviewed May 2026 · 1 min read

Is Potassium Carbonate vegan?

Also known as: Potash, E501, Salt of tartar

E-number: E501

Vegan

Suitable for a vegan diet.

In short

Yes — Historically obtained from wood ashes (potash), it is now produced synthetically from potassium chloride and carbon dioxide.

01 · The basics

What is Potassium Carbonate?

A white salt used primarily in the production of cocoa and wine to regulate acidity.

02 · The source

Historically obtained from wood ashes (potash), it is now produced synthetically from potassium chloride and carbon dioxide. It is vegan.

Frequently asked

Is E501 vegan?

Yes, it is a mineral salt.

What is 'Dutch-process' cocoa?

It is cocoa powder that has been treated with an alkalizing agent like E501 to reduce its natural acidity and give it a darker, richer color.

Commonly found in

Dutch-process cocoaRamen noodles (Kansui)WineSoft drinks

A weak organic acid used as a natural preservative and to add a sour taste.

A powdery acidic byproduct of winemaking, used in baking and stabilizing egg whites.

Used as a preservative and flavoring agent to add a sour taste to foods.

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