CodeE340 · INS 340
TypeAcidity regulator
Made fromMineral.
Found insoft drinks, sweets, jams, sauces and processed foods
What is E340?
E340 is Potassium phosphates, an acidity regulator. Mineral.
Also written as: INS 340, E-340, E 340. 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 E340 halal?
E340 (Potassium phosphates) is halal. Mineral.
What is E340 made from?
Mineral.
What is E340 used for?
E340 is used as an acidity regulator, typically in soft drinks, sweets, jams, sauces and processed foods.
What should I do if a product contains E340?
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 acidE339Sodium phosphatesE341Calcium phosphates
Last reviewed 2026-10-06. How we decide · Suggest a correction