Last reviewed May 2026 · 1 min read
Is Acetic Acid (E260) vegan?
Also known as: E260, Ethanoic acid, Vinegar acid, Glacial acetic acid
E-number: E260
Vegan
Suitable for a vegan diet.
Yes — Food-grade acetic acid is produced by the fermentation of plant-based materials like grains or fruit into ethanol, followed by a second fermentation into acetic acid.
01 · The basics
What is Acetic Acid (E260)?
A colorless organic acid that gives vinegar its characteristic sour taste and pungent smell. It is used as a preservative, acidulant, and flavoring agent.
02 · The source
Where it comes from
Food-grade acetic acid is produced by the fermentation of plant-based materials like grains or fruit into ethanol, followed by a second fermentation into acetic acid. It can also be produced synthetically; both methods are vegan.
Frequently asked
FAQ
Is all vinegar vegan?
While the acetic acid itself is vegan, some types of vinegar, like certain balsamic or wine vinegars, may be filtered using animal products such as isinglass or gelatin. Plain distilled white vinegar is almost always vegan, but for others, it's best to check with the manufacturer.
What is the difference between acetic acid and vinegar?
Vinegar is essentially a dilute solution of acetic acid (typically 4-8%) in water, along with trace compounds from the source material that contribute flavor. Acetic acid (E260) is the pure chemical compound responsible for the sourness.
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