Freezing a gallon of milk vs a gallon of water:?

Question

If you freeze a gallon of non-fat milk and a gallon of water then put them into the refrigerator to thaw, the water will be thawed in one day but the milk will still be partly frozen a week later. Why the difference? The milk turns slightly yellowish but goes back to white when thawed and tastes the same. Strangely enough it seems to stay fresh longer than fresh milk purchased the same day that it is totally thawed. Any ideas why?

Answer 1

Milk is a mixture of many complex molecules:  Fats, proteins & sugars.  Each component of milk freezes at a different temperature.  Improper freeze & thaw will damage some molecules, wrecking the milk.

Water is simply H2O, a very basic molecule that goes from gas to liquid to solid without any problem.

Answer 2

They are different sunbstances. Many things come up and change the whole experiment. There are a lot of variables to consider from color, texture, thickness...etc..

Answer 3

i dunno