Blue cheese

Blue cheese, known in French as bleu ("blue"), is a general classification of cow's milk, sheep's milk, or goat's milk cheeses that has had Penicillium cultures added so that the final product is spotted or veined throughout with blue or blue-green mold. Some blue cheeses are injected with spores before the curds form and others have spores mixed in with the curds after they form. Blue cheeses are typically aged in a temperature-controlled environment such as a cave.

Much like wines, many blue cheeses such as Roquefort, Gorgonzola, and Stilton are a protected designation of origin in the European Union, meaning they can bear the name only if they have been made in a particular region in a certain country.

Blue cheese, known in French as bleu ("blue"), is a general classification of cow's milk, sheep's milk, or goat's milk cheeses