Supermarkets have removed products from their shelves after it was confirmed that eggs contaminated with dioxins had been used in their cakes and quiches.
The Food Standards Agency (FSA) said supermarkets had already sold most of the affected food, which had a short shelf life and had probably been eaten.
Stores that have now withdrawn items include Tesco, Morrisons and Sainsbury’s.
The FSA has advised retailers to clear any remaining affected products, but stressed that consumers do not face any health risks as mixing the eggs would have diluted the levels of dioxins.
The pasteurised liquid egg in question had been supplied to Kensey Foods in Cornwall and Memory Lane Cakes Ltd in Cardiff, who then made the products for the supermarkets.
The FSA said: “There is no food safety risk from eating these products. The majority of products will have been sold and most have passed their ‘use by’ or ‘best before’ dates. Supermarkets are removing the small amount of products that are still in date.”
Tesco said in a statement: “Tesco is withdrawing a small number of products. We would like to stress to customers that this is a purely precautionary measure and the FSA has stated there is no food safety risk.”
Dioxins are chemicals formed by industrial processes and waste burning. They have been shown to contribute to higher cancer rates and affect pregnant women.
Fourteen tonnes of the contaminated egg which originated on continental Europe entered the UK destined for use in goods like pastries and mayonnaise, the EU executive said.
The alert came after it was discovered that poultry feed contaminated by toxic dioxins was sent to more than 1,000 poultry and pig farms in Germany.