There are a wide variety of foods that can be frozen and then used later for either straight consumption or in cooking. Of course, most of these foods must undergo a little preparation to be frozen. But freezing can be a real money saver for your food budget.
Milk: Milk may be frozen. First, pour a little out of the container to allow for expansion, or buy in expandable plastic containers. Then just place it in the freezer. When you want to use the milk, just put it back in the refrigerator to thaw.
Butter and margarine: No, really, you can freeze both butter and margarine. Just put it in the freezer in the container you bought it in or in tightly wrapped aluminum foil or an airtight plastic bag. Then just thaw the butter or margarine just as you would thaw milk; slowly, in the fridge. It will last for months this way.
Hard Cheeses: Keep in the original airtight package, or as with butter, wrap tightly in foil or in an airtight plastic bag. Some people think that this makes the cheese suitable only for cooking; others believe the cheese in perfectly edible for up to six months frozen.
Bananas: The unfrozen shelf life of bananas is about five minutes, before they turn too dark and too soft to eat straight. Place the unpeeled, over-ripe fruit in a freezer bag and put in the freezer. These frozen bananas are perfect for use in baked goods, such as banana bread.
Flour: Besides saving money, freezing your flour is also hygienic. Yes, even in the 21st century weevils still can infest flour. Pour the flour in an airtight container and discard the paper bag that you bought it in, and then put in the freezer for at least 48 hours. This will kill the weevils and the frozen flour will keep for a long time.
Eggs: Eggs out of the shell may be frozen, either separated into yolks and whites or whole. Lightly whip the eggs; you do not want them full of air. Then place in small airtight containers for later use. This is a great way to save the separated egg parts for later use.
Wine: instead of tossing out that last bit of wine at the bottom of the bottle consider freezing it. The frozen wine is not good enough to drink, but is perfect for cooking. Pour the wine into an ice cube tray and cover with plastic wrap and place in the freezer. To use, merely remove the desired amount from the tray.