CodeE338 · INS 338
TypeAcidity regulator
Made fromMineral.
Found insoft drinks, sweets, jams, sauces and processed foods
What is E338?
E338 is Phosphoric acid, an acidity regulator. Mineral. Found in colas.
Also written as: INS 338, E-338, E 338. 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 E338 halal?
E338 (Phosphoric acid) is halal. Mineral. Found in colas.
What is E338 made from?
Mineral.
What is E338 used for?
E338 is used as an acidity regulator, typically in soft drinks, sweets, jams, sauces and processed foods.
What should I do if a product contains E338?
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
E260Acetic acidE261Potassium acetateE262Sodium acetatesE263Calcium acetateE270Lactic acidE296Malic acidE336Potassium tartrates (cream of tartar)E339Sodium phosphates
Last reviewed 2026-10-06. How we decide · Suggest a correction