If you are planning to store your food for a longer period of time, you can coat your metal cans with a thin layer of paraffin wax. If you rotate your food on a regular basis, using the older food first, you may not have a problem with moisture. However, if you live in a very wet climate, extra caution must be used. Insects and Rodents Many of the foods we store for food storage are subject to bug infestation. The better your methods for storing the food, the less likely you are to have a problem with bugs.
Some items are more suseptible to bug infestation than others.
Cereals, grains, and flours are quite suseptible. A man who owns a grainery told me that weevil eggs are common in most flours and grains. The best way to avoid a problem is to store these items at low temperatures, It is the higher temperatures that cause the weevil to hatch. Storage containers will make a large difference in the successful exclusion of bugs and rodents. These pests can quickly gain access to food packaged in paper or plastic bags.