Is E336 halal or haram?
Potassium tartrate (cream of tartar) · Acidity regulator
E336 (Potassium tartrate (cream of tartar)) is generally classified as suspect (mashbooh). Salt of tartaric acid, a by-product of winemaking; some scholars treat tartrates as doubtful for that reason.
What is E336?
E336, listed on labels as Potassium tartrate (cream of tartar), is an acidity regulator that controls the pH (sourness) of a product. You'll most often find it in packaged and processed foods.
Is E336 halal? The verdict
E336 is mashbooh (doubtful). Salt of tartaric acid, a by-product of winemaking; some scholars treat tartrates as doubtful for that reason. Manufacturers aren't required to print the source on the label, so unless the pack states a plant/vegetable source or carries a recognised halal certification (HMC, JAKIM, MUI, IFANCA), the safest choice is to avoid it.
How to check E336 on a label
Scan the ingredient list for E336 and its other names. If it's present and the source isn't stated, treat the product as doubtful. A barcode or photo scan with Halal Food AI flags E336 automatically and tells you whether the product declares a halal source.
Other names & label terms to scan for
Potassium tartrate (cream of tartar)Cream of tartarPotassium bitartrateINS 336E336
Bottom line
E336 is doubtful (mashbooh) — avoid unless the source is stated as halal or the product is halal-certified.
Stop guessing in the aisle
Halal Food AI flags E336 and every other suspect or not-halal additive automatically — just scan the barcode or snap the ingredient list. Plain-language verdicts, 25+ languages.