Your freezer can be a great tool for preserving foods and storing make-ahead meals, and one of the most important things you can do is pay attention to the containers you use. The right packaging will ensure that frozen foods retain their flavor, color, and texture without developing freezer burn or absorbing other flavors and odors.
When freezing foods, use containers and packing materials that are durable, easily sealable, resistant to cracking at low temperatures, and moisture- and vapor-resistant. Choose the right size container for your volume of food; wasted space can lead to oxidation and freezer burn. At the same time, be aware that foods that contain water expand when frozen, so make sure the containers are expandable or that you leave enough headspace to allow for expansion. The following are suitable for frozen foods:
• Rigid containers: Use sealable, rigid glass or plastic containers designed for freezing. Two inexpensive options are Frigoverre glass storage containers and Ball stackable plastic freezer jars.
• Mason jars: Use only wide-mouth glass jars; jars with necks can crack more easily as contents expand. To allow for food expansion, do not fill jars above the 1-inch line.
• Plastic freezer bags: Use bags that are designated for freezing, such as zip-top bags or vacuum freezer bags. These are made of thicker material than regular plastic bags and are more resistant to moisture and oxygen. In lieu of a vacuum sealer, use a straw to suck oxygen out of bags.
• Freezer paper: This heavyweight paper has a waxy coating on one side, which provides a moisture-vapor barrier. It is particularly useful for wrapping meat, fish, and poultry.
• Plastic wrap: Use good quality, thick plastic wrap – not the cheap stuff.
• Aluminum foil: This is more moisture-resistant than plastic wrap, but be sure to use heavy duty aluminum foil.
Finally, no matter what containers you use, remember to label and date everything!
Related: Food Science: What is Freezer Burn and How to Prevent It
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I find that there are three indispensable tools for freezer storage: freezer tape, a Sharpie, and a straw. When I freeze fruit, pre-formed cookie dough, etc, I put the items in a single layer in a freezer bag, stick the straw in a corner of the bag, close the bag around the straw and then suck all the air out. Then quickly close the bag and pull out the straw.
PS This also works great if you are trying to save room on a backpacking trip. :)
Also, don't forget that some foods (especially produce) benefit from a little prep before freezing:
http://nchfp.uga.edu/how/freeze.html
My food saver is probably in my top five favorite (and most used) kitchen purchases. They are pricy but if keep an eye on craigslist or yard sales, you can get some good deals. I think I picked mine up (with a bunch of bags for $20 or $30).
In our kitchen we use either freezer bags, or suitable-sized plastic containers with a lid. I think the hardest part is not mixing and matching too much, or you end up wasting a ton of space. We used to have about 20 different sizes of container in the freezer at anyone time - we've simplified that RIGHT down to about 3 different types now. We get lots more in the freezer now.
I just LOVE the Ziploc vacuum bags.
http://www.ziploc.com/Products/Pages/VacuumFreezerSystem.aspx
They make it possible to freeze irregularly shaped things (like lamb chops) and get ALL the air out. My only bitch is that they're harder to find than they should be. I'd be FURIOUS if they stopped making these. I have no room for one of those machines.
As much as I hate using plastice, I too have a food saver and found that is the only thing that saves the food from being freezer burned.
I'm all about wrapping food in waxed paper to protect against frost and freezer burn.
We're trying to keep Ziplock bags out of the freezer as they use BPA, which (I've read) can leech into foods when heated or frozen. Sticking with BPA-free freezer containers.
Slangevar - I was curious about your assertion, so I looked for the answer:
http://www.ziploc.com/Products/Pages/VacuumFreezerSystem.aspx
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"SC Johnson does not use BPA in its plastic products, Ziploc® Brand Bags and Containers."