KFC in Pontypool was given a zero score by the Food Standards Agency, the worst rating meaning urgent action is needed.

Co-operative stores in Pontardawe, Porth, and Birchgrove, Cardiff scored one, along with Subway in Queen Street, Cardiff and Harvester in Cardiff Bay.

Costa in Brecon, Tesco cafe in Maesteg and Asda in Aberdare had a two rating.

That means improvement is necessary.

There are more than 26,000 businesses in Wales which have ratings, of which more than 1,400 had a two rating or below. The highest score is five.

Russel Smith, chief operating officer, KFC UK, said: “I was extremely disappointed by the rating this restaurant received, which is completely unacceptable.

“We took immediate action to return the restaurant to the standards we demand and are awaiting a re-inspection which we are sure will reflect this.”