You can't. Milk contains a lot of water. so adding water is just diluting the milk. Besides "pure milk" is a very strange phrase since milk has many different components, and fresh milk isn't even homogeneous.
distillation
by distillation
Dissecting Milk
Yes
They are aqueous solutions of various compounds in water, so they consist of many separate pure substances. Many of these can be separated by simple physical means (filtering, evaporating, centrifuge).
ask a friend
Yes Centrifugation is the most common technique used to separate cream from milk (especially raw cow milk).
Milk and water can be separated by boiling it, using a distiller, or by reverse osmosis using a filter.
Milk is not pure. It is a mixture.
swan can seperate water from mail
evaporate the water or evaporation. condense the water vapour or condensation
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