The products, under the name Sushi Daily Sushigari in 140g jars, are being recalled from some Waitrose and Sainsbury’s stores.
The jars have a best before date of June 2 2018 and a lot number of 18081. The company said no other Sushi Daily products were known to be affected.
As a precautionary measure, the company is asking customers who have purchased affected items not to consume them, but to return them to their nearest store, where they will receive a full refund.
Sushi Daily has apologised to customers for the inconvenience.