Butter is a solid fat processed from milk, which is the product of mixing fresh milk and removing some of the water from the top layer of the thick object. It is mainly used as a flavoring, and is rich in nutrients but high in fat, so don't overdo it.
5th century BC, the Huns have been because of pastoralism, dairy products, a variety of production techniques mature and spread at home and abroad. Foreigners called butter, is the Chinese called cream in the milk refining edible oil products. The Huns are the world's earliest processing of edible butter.
Extended information
Butter fat content is 30 times that of milk
The fat content of cream is many times higher than that of fresh milk, and the fat content of coffee, ice cream and other foods added to the light cream, the fat content of fresh milk can reach five times. Butter is produced from the cream, the cream with a centrifuge to further stir the separation, you can get butter. 10 pounds of milk to produce 1 pound of cheese, and butter 20 pounds of milk to produce 1 pound of butter (milk density of 1.0288 g / ml), and almost all of the milk fat concentrate. Energy is about 16 times that of milk, and fat is 30 times that of milk.
Butter is low in vitamin A, calcium and other nutrients, while energy, fat and cholesterol levels are extremely high, and there is no benefit to weight control or cardiovascular health.
Baidu Encyclopedia - Butter
People's Daily News - Butter is a concentration of milk fat! It contains 30 times more fat than milk