Why Should You Not Freeze Milk?

Frozen and defrosted milk is best suited for cooking, baking, or making smoothies. It may undergo some changes in texture that make it unpleasant to use as a beverage. These include being slushy, grainy, or having some fat separation.

Why you shouldnt freeze milk?

Recommended. The biggest danger when it comes to freezing milk is that it expands. For this reason you should never freeze it in a glass bottle because it will crack. Giving the carton extra space in the freezer also caters for this expansion, and stops it getting wedged in the freezer.

Is it safe to freeze milk in plastic containers?

Milk can be frozen in its original container, so long as that container is plastic. If your milk comes in a glass or cardboard container, you'll want to transfer it into a freezer-safe plastic container before you freeze it.