Freezing can also make the fat separate, so depending on which kind of milk you're freezing, it may be necessary to shake the milk to re-incorporate the fat, Balls adds.

Cheeses you can freeze (and those you shouldn’t ... water content will likely experience some separation of water and fat and may look broken or grainy once thawed. So stay away from freezing ...

It’s not advised to freeze fat-free cottage cheese. If you’ve never opened your cottage cheese, you can go ahead and leave it in the container it came in, but you’ll want to wrap it in foil ...