Last reviewed May 2026 · 1 min read

Is Calcium tartrate vegan?

Also known as: E354

E-number: E354

Vegan

Suitable for a vegan diet.

In short

Yes — It is a salt of tartaric acid, harvested naturally from the residues of wine fermentation.

01 · The basics

What is Calcium tartrate?

A byproduct of the winemaking industry, used as an acidity regulator and preservative.

02 · The source

It is a salt of tartaric acid, harvested naturally from the residues of wine fermentation. It is 100% plant-based.

Frequently asked

Is E354 vegan friendly?

Yes, it is a natural derivative of the winemaking process and is entirely vegan.

What is its main use?

It is primarily used to balance the acidity in commercial fruit products and to help preserve color.

Commonly found in

WineFruit juicesPreserves

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.

Keep exploring

A popular synthetic red food dye used to give foods and drinks a prominent red or pink color.

A bright lemon-yellow synthetic food dye commonly used in processed foods, drinks, and medications.

A synthetic blue dye used in foods, cosmetics, and dietary supplements to achieve a vibrant blue hue.

What's next