Supermarkets recall hummus after salmonella found in tests

Scientists were probing the source of a salmonella scare last night which has led six major food chains to withdraw hummus products.

Tesco, Sainsbury, the Co-op, Somerfield and Waitrose all removed tubs of hummus after the bacterium was discovered in some Marks & Spencer own-brand products during routine tests. The M&S brand is supplied by Bakkavor, an Icelandic firm, which also prepares food for the other stores.

A spokeswoman for Bakkavor said it was investigating its raw materials, the finished product, and its manufacturing processes. "This work is being carried out in conjunction with a number of independent scientific laboratories," she said.

The firm would not say how many pots of hummus were being withdrawn, although it is estimated to be tens of thousands. The recall affects own-brand hummus and flavoured varieties at each of the six stores. Customers are urged to return the products for a full refund.

A statement on Bakkavor's website said: "During routine testing, salmonella was discovered in two varieties of hummus manufactured in one of the group's factories. The cause is related to a raw material."

The firm said it has received no complaints and the withdrawal was a "precautionary measure". It apologised for any inconvenience. M&S is withdrawing all date codes while the other chains are withdrawing hummus products up to February 28.

Concerned customers should contact Bakkavor's care line on 0800 023 2960.