Irish Food Safety Authority finds horse DNA in 10 out of 27 burgers it reviews . The discovery of horse DNA in hamburgers on sale at supermarkets in Ireland and Britain is testing the appetite of meat lovers there . The hamburgers are on sale in supermarkets in Ireland and Britain . The agency found 80 % of a burger from Ireland to be made of beef . Tesco says it has withdrawn from sale all products from the supplier in question .
Irish Food Safety Authority finds horse DNA in 10 out of 27 burgers it reviews . The hamburgers are on sale in supermarkets in Ireland and Britain . The agency found 80 % of a burger from Ireland to be made of beef . Tesco says it has withdrawn from sale all products from the supplier in question .