churning
Milk is centrifuged to separate the cream/fat.
Homogenization mixes the cream and the milk so they don't separate.
Skim milk is milk with all of the butterfat (cream) removed. The butterfat rises to the top, and is easy to skim off. The remainder can be removed by centrifuge. What is left is skim milk. It is powdered by the simple industrial process of evaporation.
Yes Centrifugation is the most common technique used to separate cream from milk (especially raw cow milk).
Preparation of cream from milk is a physical process.
centrifugation
what is a mechanical process that prevets cream from rising to the surface of milk?
Cream is the fatty parts of whole milk. You cannot churn milk to make cream but you can process whole natural milk to get the cream.
To make coconut cream from coconut milk, you can refrigerate a can of coconut milk overnight. The cream will separate and solidify on top. Scoop out the solidified cream and use it as coconut cream in your recipes.
The amount of cream in milk means the cream content in the milk AFTER the pasteurisation process. The amount of cream in the milk is usually lower the more it is pasturized so it is put on the bottle to ensure you that, yes, there is cream still in the milk.
Breast milk separates due to the natural process of cream rising to the top, similar to how milk separates. Factors that can contribute to this separation include the fat content of the milk, the temperature at which it is stored, and how long it has been stored.
mix buttermilk and milk and u let it sit for a hour