CodeE221 · INS 221
TypePreservative
Made fromSynthetic.
Found insoft drinks, bread, cured meats, dried fruit and sauces
What is E221?
E221 is Sodium sulphite, a preservative. Synthetic.
Also written as: INS 221, E-221, E 221. 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 E221 halal?
E221 (Sodium sulphite) is halal. Synthetic.
What is E221 made from?
Synthetic.
What is E221 used for?
E221 is used as a preservative, typically in soft drinks, bread, cured meats, dried fruit and sauces.
What should I do if a product contains E221?
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
E200Sorbic acidE202Potassium sorbateE210Benzoic acidE211Sodium benzoateE212Potassium benzoateE213Calcium benzoateE220Sulphur dioxideE223Sodium metabisulphite
Last reviewed 2026-10-06. How we decide · Suggest a correction