Blue cheese is a term used for the type of cheese with veins of blue mold. This type of cheese can be made from cows, goats, and sheep's milk. Blue cheese first originated from France and Italy but soon became famous throughout the western world. There are many different varieties of blue cheese like Danablu, blue stilton, Roquefort, and Gorgonzola. These all varieties are different due to different textures, tastes, and the presence of blue, black, gray, and green veins of mold throughout the cheese.