I. Sources

Butter: Made from milk.

Butter: extracted from the adipose tissue of cattle.

Second, production.

Butter: After mixing the milk, take out the sticky substance and filter out some water.

Butter: Heat treatment of bovine adipose tissue needs melting and deodorization.

Third, use.

Butter: commonly used as seasoning, less directly eaten.

Butter: used as a pastry storage box, not suitable for direct consumption.

Fourth, the smell.

Butter: It smells like milk.

Butter: It has a particularly unpleasant smell.