Horsemeat: School meal findings 'unacceptable', says FSA
15 February 2013 Last updated at 15:53 GMT
Catering giant Compass Group and Whitbread, one of Britain's largest hotel chains, have found horse DNA in products sold as beef, it has emerged.
Horsemeat has also been found in cottage pies supplied to 47 schools in Lancashire - they have been withdrawn.
But the Food Standards Agency says that after 2,501 fresh tests no new products have been identified as containing more than 1% horsemeat.
It said the 29 positive results were on seven previously withdrawn products.
FSA Director Wales Steve Wearne told the BBC that while the levels of horsemeat found in school meals were "quite low", its presence was still "unacceptable".