A number of celebrity chefs are affected by the move, including Gordon Ramsay, whose Maze Grill restaurant sells a burger for £12, Angela Hartnett, whose York and Albany’s bar menu includes burgers, and the Soho House chain, run by Nick Jones, the husband of broadcaster Kirsty Young.

All face being asked at their next routine inspection how they offer their burgers.

Critics fear it could lead to questions over the safety of rare steaks and raw meat dishes such as steak tartare. The policy is to be the subject of a legal ruling.