Butter is a kind of solid grease processed from milk, which is the product of filtering some water from the upper layer of thick matter after mixing fresh milk. Mainly used as seasoning, butter made from milk is rich in nutrition, containing vitamins, minerals, fatty acids, glycosylated neurophospholipid and cholesterol, and butter is also delicious to cook. Can be fried fish, fried steak, toast, spread bread, nutritious but high in fat, do not overeat. In the 5th century BC, Huns had matured and spread various dairy production technologies at home and abroad because they were mainly engaged in animal husbandry. What foreigners call butter is edible oil extracted from milk called cream in China. Huns are the earliest people who processed edible butter in the world. Butter is rich in nutrition and delicious, and is deeply loved by people all over the world.