how cold must milk be kept
1 for 3 to 6 months in a freezer that's self-contained and connected on top of or on the side of the refrigerator and is kept at 0Â°F (â18Â°C). Store the milk in the back of the freezer, not in the door.  for 6 to 12 months in a deep freezer that's always -4Â°F (â20Â°C)