Going on vacation and absentmindedly bought a whole gallon of milk? Waste not, milk lovers! You can actually freeze milk with few repercussions. Simply pour out a little milk to leave room for expansion, and pop in the freezer. Once you return home, remove from the freezer and thaw in refrigerator for a day or two. Before use, give it a good shake to prevent drinking any separated milk. It’s best to freeze milk at its freshest, and it shouldn’t be kept longer than four to six weeks.