Traditional Welsh Caerphilly, also known as Traditional Welsh Caerffili, is a cheese made from pasteurized cow's milk in South and West Wales in the United Kingdom. It was first made in Caerphilly around 1830. The cheese has a high moisture content and a white rind that is lightly dusted with flour.
When young, its texture is moist, soft, and supple, the flavor fresh and lemony, and it was popular in mining communities due to its tough rind, as it could be easily eaten with dirty hands in the mines. Its salty and moist curd replaced the minerals that were lost during the long hours of undergound work.