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Generally halal
E270 (Lactic acid) is usually made by bacterial fermentation of plant sugars and is generally accepted as halal; despite the name it is not necessarily from milk.
Lactic acid is a mild acid used to adjust acidity and preserve foods. Despite its name (from Latin for milk), commercial lactic acid is normally produced by fermenting plant sugars with bacteria, not from dairy.
Produced by bacterial fermentation of carbohydrates (such as corn or beet sugar), then purified. A dairy substrate is very rarely used.
Lactic acid is generally classified as halal because it is normally made by fermenting plant sugars, with no animal or alcohol component. The 'lactic' name does not mean it is from milk. As always, the finished product still needs its own verification.
It may be found in — this does not mean every product below contains it.
Lactic acidE270Acidity regulator (E270)INS number: 270
Ingredient guidance is not certification. Verify the finished product on the MUIS HalalSG register or with the manufacturer.
Check MUIS HalalSGSources: EFSA, FAO/WHO, MUIS · Last reviewed: July 2026 · This guidance is not certification.
Yes — it is normally made by fermenting plant sugars and is generally accepted as halal. Despite the name, it is not necessarily from milk.
Usually not. Commercial lactic acid is normally produced by fermenting plant sugars; a dairy substrate is very rarely used.
'Lactic acid' or 'E270'.
Humble Halal methodology: we classify additives by their common origin, not by any specific product. A generally-halal ingredient does not make a finished product halal-certified. This page is general guidance, not certification or religious/legal advice — always verify the complete product. Last reviewed July 2026.