The popular bakery chain has warned that some packs of steak bakes contain sausage, bean and cheese melts, meaning some sulphites are not declared on the label.
The UK’s Food Standards Agency (FSA) said the mislabelling means the product is a “possible health risk for anyone with a sensitivity to sulphur dioxide and/or sulphites”.
The recall only applies to packs of two frozen steak bakes – sold exclusively in stores of the supermarket chain Iceland – which have a best before date of 19 May 2025.
No other products, date codes or batches are believed to have been affected.
Customers who have recently bought the product have been told not to consume it but return it to their nearest Iceland store, where they can get a full refund.
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Sulphites are naturally found in some foods but are also used as preservatives and bleaching agents in the production of other foods and drinks, according to Allergy UK.
They are added to foods and drinks to slow down how fast they go off and to lighten their colour.
Those with a sensitivity to sulphites or sulphur dioxide can experience stomach issues or problems with their airways when sulphite-containing foods interact with acid in the stomach.
Sulphite sensitivity is more common in people who have asthma, and while reactions are usually mild, there are a very small number of reports of serious allergic reactions to sulphites, including anaphylaxis, according to the charity.