THE race is on to find curry powder containing the banned dye Sudan I.
Stocks of Rajah Premium Hot Curry Powder and Rajah Premium Mild Curry Powder are affected.
The affected powder is in 100gram and 425gram tins, with a best-before date up to and including June, 2008.
A 400gram packet of the powder, with a "best before" date of June, 2007, has also been withdrawn.
Spot checks are being carried out to make sure shops have cleared their shelves of the stocks.
Martin Wood, West Yorkshire's chief trading standards officer, said: "Anyone who has any of these products at home should throw them away or return them to where they bought them.
"Retailers, takeaways and restaurants should not sell or use them and should also destroy them or return them to their supplier."
No other Rajah products are known to be affected.
Sudan I is a red dye normally used as a colouring in solvents, oils, waxes, petrol, and shoe and floor polish.
Experts say it could cause an increased risk of cancer, although it is not thought to pose an immediate risk to health.
Earlier this year, the Food Standards Agency published a list of 474 products thought to have been contaminated with the dye.