Home refrigerators became common in the 20’s and 30’s, but the first unit with a built in freezer didn’t come until 1940. At first it was supposed to be just for freezing ice cubes. People began freezing all kinds of foods, and never looked back. When using freezing as a long term food preserving method there are a few issues to consider. If you are using only the freezer unit of a refrigerator, depending on how often the door is opened and how often warm items are put in, the freezer’s temperature will fluctuate. If you want to keep frozen foods for more than six months, you need a separate freezer. A chest freezer will be the best for long term storage, but it has the disadvantage that the food is stacked in and access to what is on the bottom is difficult. An upright model may be a good alternative as long as it is not opened too frequently. Other factors include the possibility of power interruptions, maintaining food quality, and a desire not to use plastic storage containers. If you are going to depend on freezers for long term storage and you live where power interruptions may be lengthy, a small generator is a good idea. Food quality can be a real issue. There is freezer...