Most certifiers accept this, but some people prefer to avoid it. Turn on strict mode to flag it.
What is E334?
E334 is Tartaric acid, an acidity regulator. Most scholars accept it because it is fully transformed (istihalah) and contains no alcohol. Strict mode flags it.
Also written as: INS 334, E-334, E 334. 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 E334 halal?
E334 (Tartaric acid) is halal. Most scholars accept it because it is fully transformed (istihalah) and contains no alcohol. Strict mode flags it.
What is E334 made from?
Often a by-product of wine making; also synthetic.
What is E334 used for?
E334 is used as an acidity regulator, typically in soft drinks, sweets, jams, sauces and processed foods.
What should I do if a product contains E334?
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