Cheddar cheese is primarily made from cow's milk. The process involves heating the milk, adding rennet and cultures, and then curdling. The curds are then cut, cooked, and pressed to remove whey before aging. Cheddar can come in various forms, ranging from mild to extra sharp, depending on the aging process, which can last from a few months to several years. This aging allows the cheese to develop complex flavors and a firm texture. Its characteristic orange color often comes from the addition of annatto, a natural coloring derived from the seeds of the achiote tree.