Contaminated meat is still being identified across the UK with a batch of frozen mince supplied to six schools in Edinburgh found to contain between 1% and 5% horsemeat and pork discovered in halal chicken burgers in Birmingham.
In the Scottish capital, the council said they did not know whether the mince in question had been served to pupils, but stressed in a letter to parents that there was no health risk, according to the BBC.
Food at all six of the schools is procured by the PPP contractor, who in turn sourced the frozen mince from catering firm 3663, the broadcaster reported. 3663 has recalled all batches of its frozen beef product.
A spokesman for the council said: "Some 85 meat product samples have been taken from council catering establishments to date and all except one have tested negative for the presence of horsemeat."
The results have been reported to the Food Standards Agency.
And Birmingham City Council’s environmental health team discovered the Humza brand burgers, sold in packs of 20, contained pork protein.
They found the burgers contaminated with pork, forbidden to Muslims, while conducting tests for horse meat.
A council spokesman told the Birmingham Mail: “The city council would like to stress that at this stage, there is no evidence to suggest that Roshan Foods has caused this deliberately.
“Investigations are ongoing and the firm is co-operating fully. Their retail and catering customers have been notified.
"We are working closely with other local authorities to trace exactly how this has occurred.”
Other council announced on Friday that they had finished testing and found no contaminated products. No horsemeat or pig DNA has been found in food samples taken from schools and care homes in Cardiff after tests were ordered by the council.
And South Lanarkshire Council have also been given the all-clear in tests for horsemeat DNA, according to the East Kilbride News.