Why does white milk turn yellow when it freezes?!

Question:

Why does white milk turn yellow when it freezes?

Answers:

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I think it’s the difference in the freezing of the butterfat in the milk. I’ve noticed that when you freeze skim milk, it freezes white, but if you freeze whole milk it does turn a bit yellowish, like homemade vanilla ice cream. The fat freezes at a lower temperature than does the “watery” part of the milk, like when the ice cubes in the freezer are frozen but the ice cream is a little soft. When you thaw the milk, the butterfat melts and is again part of the milk, losing the yellow color.

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Source(s):
http://www.backwoodshome.com/advice/aj96...

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because the fat in the milk solidifies, and fat is yellow in color

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