I have written before about buying cheap milk that is about to expire and storing it in the freezer. Occasionally, we find great deals on several gallons of milk that the grocery store is trying to clear out.
My husband did just that a couple of weeks ago. He came home from grocery shopping with 12 gallons of milk!
We put it all in our extra refrigerator in the garage and when we saw that we weren't going to be able to use it before the expiration date, I began putting them in the freezer.
I'm not sure how 2 gallons made it to the freezer before the rest, but it's a good thing they did. I had forgotten to open the lids and pour a little out of each gallon before freezing them. Both containers had burst open and we had a mess on our hands.
Fortunately, I was able to put the jugs in big bowls for defrosting and salvaged most of the milk.
As for the milk still in the fridge, I made sure to pour a little out of each so they would have room to expand without bursting in the freezer.
If you need to freeze milk, remember to leave a little room for the expansion that will occur during freezing.