Last reviewed May 2026 · 1 min read
Is E270 (Lactic acid) vegan?
Also known as: Lactic Acid, Milk Acid, 2-Hydroxypropanoic acid
E-number: E270
Vegan
Suitable for a vegan diet.
Yes — Despite the word 'lactic', it is produced through bacterial fermentation of carbohydrates, not milk.
01 · The basics
What is E270 (Lactic acid)?
Used as a preservative and flavoring agent to add a sour taste to foods.
02 · The source
Where it comes from
Despite the word 'lactic', it is produced through bacterial fermentation of carbohydrates, not milk.
Frequently asked
FAQ
Is E270 vegan?
Yes, E270 (Lactic Acid) is vegan. Despite its name, it is produced through the fermentation of carbohydrates by bacteria, not from animal products or milk.
What is lactic acid made from?
Lactic acid (E270) is primarily made through the fermentation of carbohydrates like glucose, sucrose, or lactose by various bacteria.
Is lactic acid dairy free?
Yes, lactic acid is typically dairy-free. While it can be produced using lactose, a milk sugar, the vast majority of commercially produced lactic acid is made from plant-derived carbohydrates.
What is E270 used for?
E270, or lactic acid, is used as a food additive for its preservative, flavoring, and pH-regulating properties. It adds a sour taste and extends shelf life.
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