What is E227?
E227 is Calcium bisulphite, a food additive used as a preservative. A mineral, so there is no animal, pork or alcohol source.
Also written as: INS 227, E-227, E 227. 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.
Is E227 vegetarian or vegan?
Yes. E227 (Calcium bisulphite) is normally made from plant, mineral, microbial or synthetic sources, so it is suitable for vegetarians and vegans.
Why we classify it this way
Halal A mineral, so there is no animal, pork or alcohol source.
Basis: No concern found. Made from plants, minerals, fermentation or synthesis, or from a permitted animal product. Nothing in normal production raises a pork, alcohol, insect or slaughter question.
No external reference is listed for this record yet.
Classification audited 3 November 2026. It has not been reviewed by a scholar. How classifications work · Suggest a correction
Frequently asked questions
Is E227 halal?
E227 (Calcium bisulphite) is halal. A mineral, so there is no animal, pork or alcohol source.
What is E227 made from?
Mineral salt.
What is E227 used for?
E227 is used as a preservative, typically in soft drinks, bread, cured meats, dried fruit and sauces.
What should I do if a product contains E227?
No action needed for this additive. Check the rest of the ingredient list, and remember that meat products still need proper halal slaughter.
Is E227 vegetarian or vegan?
Yes. E227 (Calcium bisulphite) is normally made from plant, mineral, microbial or synthetic sources, so it is suitable for vegetarians and vegans.