Question

Why don't we use separating funnel to separate cream from milk?
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Answer 1

When one liquid does not mix with another but floats on top of it, a separating funnel can be used to separate the two liquids.But here cream is mixed with milk.

We can seperate cream from milk by centrifugation method. In this method , the milk is spun at high speed in the centrifuge and due to the centrifugal force , the milk settles down and cream floats. then they seperate it. This method is even used in laboratories to check blood samples and as well as in washing machine.