Cheese is a dairy product made from the curd of milk. It is produced by coagulating milk proteins, primarily casein, and separating the solid curds from the liquid whey. There are many types of cheese, which can vary in texture, flavor, and color, depending on factors like the type of milk used (cow, goat, sheep) and the production process. Cheese can be classified into various categories, such as soft cheese, hard cheese, and blue cheese. Each type has unique characteristics and uses in cooking. Popular varieties include Cheddar, Mozzarella, and Brie, each enjoyed in different cuisines around the world.