Pub and restaurant operator Whitbread has removed a meat lasagne and a beef burger from its menus after they tested positive for horse DNA.

The business, which runs chains including Brewers Fayre, Costa and Premier Inn, said it had sent 30 products for testing and yesterday received positive equine DNA results for the two items. They had been available at 100 Thyme restaurants within Premier Inn and 400 sites in Whitbread’s Brewers Fayre, Beefeater, Table Table and Taybarns brands.

Whitbread said it would not be replacing the withdrawn lines until further testing has been undertaken and it was “fully reassured of the integrity of our products”.

“We are shocked and disappointed at this failure of the processed meat supply chain,” the company added in a statement. “As an industry it is clear we need the supply chain to deliver products to the highest standards of food integrity and quality that we and our customers expect.”