Blue cheese is a type of cheese that is grown with blue mold (Penicillium roqueforti). Blue cheese is a general name for types of cheese that are produced from cow, sheep, or goat milk with the help of Penicillium mold. This type of cheese is mostly used in salads or as a taste and has a special taste. According to experts, this cheese is served with pistachios. Depending on the type of cheese, bacteria can be added during rinding or after the cheese has hardened. This cheese is usually made in a temperature-controlled process, such as using a special machine. This product can be consumed alone or sprinkled on food or heated with food until it melts. One of the characteristics of blue cheese is the tendency of its aroma and taste to be sharp and salty. The smell of this cheese depends on the type of bacteria and the container and mold in which it grows. This chapter presents detailed explanations regarding the required materials and the different stages of production from milk preparation to packaging and storage of blue cheese.