Findus beef lasagne was up to 100 per cent horse meat Findus withdrew the beef lasagne products after its French supplier, Comigel, raised concerns about the type of meat used in the lasagne. We have no evidence to suggest that this is a food safety risk. However, the FSA has ordered Findus to test the lasagne for the veterinary drug phenylbutazone, or 'bute'. Animals treated with phenylbutazone are not allowed to enter the food chain as it may pose a risk to human health. Findus has already started a full recall of its lasagne products, the FSA said. Anyone who bought the products should return them to the shop they were bought from, the FSA said. Findus UK withdrew its 320g, 360g and 500g lasagne meals from supermarket shelves as a precautionary measure earlier this week. It came after Comigel alerted Findus and Aldi that their products "do not conform to specification." It advised them to remove Findus beef lasagne and Aldi's Today's Special frozen beef lasagne and Today's Special frozen spaghetti bolognese. Tesco also decided to withdraw its Everyday Value spaghetti bolognese, which is produced at the same Comigel site. The latest development in the contamination crisis comes days after supermarket chain Asda withdrew products supplied by a Northern Ireland company which was storing meat found to contain a high proportion of horse DNA. Two tested samples were found to contain 80 per cent horse meat. Authorities on both sides of the border have pledged to restore the sector's battered image, while police in the Irish Republic have launched an investigation.