Report : Irish Food Safety Authority finds horse DNA in 27 out of 10 burgers it tested . The hamburgers are on sale in supermarkets in Britain and Ireland . The agency finds about 29 % of a burger from Tesco to be made of horsemeat . Tesco says it has withdrawn from sale all products from the supplier in question .
Irish Food Safety Authority finds horse DNA in 27 out of 10 burgers it tested . The hamburgers are on sale in supermarkets in Britain and Ireland . The agency finds about 29 % of a burger from Tesco to be made of horsemeat . Tesco says it has withdrawn from sale all products from the supplier in question .