Most certifiers accept this, but some people prefer to avoid it. Turn on strict mode to flag it.
What is E336?
E336 is Potassium tartrates (cream of tartar), an acidity regulator. See E334. Strict mode flags it.
Also written as: INS 336, E-336, E 336, cream of tartar. INS is the international numbering system used outside Europe, including on labels in Asia, Australia and the Middle East.
What to do
No action needed for this additive. Check the rest of the ingredient list, and remember that meat products still need proper halal slaughter.
Frequently asked questions
Is E336 halal?
E336 (Potassium tartrates (cream of tartar)) is halal. See E334. Strict mode flags it.
What is E336 made from?
Made from tartaric acid, often from wine sediment.
What is E336 used for?
E336 is used as an acidity regulator, typically in soft drinks, sweets, jams, sauces and processed foods.
What should I do if a product contains E336?
No action needed for this additive. Check the rest of the ingredient list, and remember that meat products still need proper halal slaughter.
Related E-numbers
Last reviewed 2026-10-06. How we decide · Suggest a correction