With the price of milk gradually increasing, with no signs of stopping, savvy consumers are taking to freezing milk in order to save on milk-purchasing costs. While you may be unwilling to freeze milk, it's actually a very safe process that extends the life of your milk.
Pour the milk into the plastic bottles, leaving about 1/4 inch to 1 inch of space unfilled.
Seal the tops of the bottles with airtight caps.
Place the plastic milk bottles into the freezer.
Frozen milk is good for up to 3 months. The frozen milk may turn yellowish, but the milk is still good to drink.
Not all plastic bottles are capable of being frozen. However, most grocery-store milk bottles are safe to freeze.