In the long process of development, China cuisine has formed a rich and colorful cultural connotation and a solid technical foundation. Since our ancestors knew how to cook with fire, China cuisine has roughly experienced four historical stages: germination, formation, development and prosperity. Four historical stages. First, the birth of cooking in the bud is marked by cooking food with fire. Four large ash beds were excavated at the Peking man site in Zhoukoudian, Beijing more than 500,000 years ago, the thickest of which reached 6 meters. Many charred stones, bones, Pu Shu seeds and charcoal were found in the ash beds. Jia Lanpo, a modern archaeologist and Quaternary geologist in China, came to the conclusion that "Beijingers" have been able to save the fire and manage it well. 1 has known about cooked food. This proves that "Beijingers" have learned to cook with fire and invented the skill of cooking by heating. This is the earliest known example of cooking food with fire in the world. Cooking was born. Second, the formation period The formation period of China cooking is the pottery cooking period. During this period, agriculture and animal husbandry developed by leaps and bounds, and processing tools such as cookers, Chu Jiu and millstones appeared. Later, with artificial salty seasoning, the sea was cooked and eaten with salt. Pot is the earliest cooker invented by ancestors, from which various water cooking methods with water as heat transfer medium have emerged. The main position of damp heat is that fine raw materials such as rice, millet and wheat produced in agriculture can be made into food after hulling and peeling, and porridge and rice appear one after another. Later, Tao Zan and others invented the steaming method with steam as the heat transfer medium. Cooking methods such as boiling and steaming can fully decompose starch polysaccharide, which is beneficial to human absorption, make full use of agricultural products, and make grain gradually occupy the position of staple food, thus promoting the development of agriculture. This period is about the whole Neolithic age. The cooking materials in this period were mainly agricultural products, with a relatively constant supply; The processing technology of raw materials has developed. Due to the wide application of cookers and cookers and simple seasoning, the pattern of cooking and adjustment has begun to take shape, which constitutes the initial cooking process, and "the way of fire and food begins to prepare", so it is called the formation period.