Is E337 Halal?
E337 (Sodium Potassium Tartrate), also known as Rochelle salt, is a salt of tartaric acid, which is mainly a by-product of winemaking. It is classified as MUSHBOOH because scholars differ on whether tartaric acid taken from wine residue is permissible, so it is best to look for a halal-certified label.
Guidance for Muslims
E337 has a doubtful status. It can be derived from either plant or animal sources. Without specific certification, the origin cannot be verified. When in doubt, avoid.
Common Products Containing E337
This additive is commonly found in bread, baked goods, margarine, ice cream, chocolate, and processed foods. Always check the label or scan with HalalCheck.