International Association for Food Protection Says: "Avoid storing foods high in salt that will increase thirst. Also, store single servings or one-meal sizes to avoid leftovers. Canned foods keep almost indefinitely as long as cans are undamaged.
However, for the best quality and nutritional value, replace canned goods every year. Finally, emergency food and supplies must be safely stored from pests and rodents. Grains and other dry goods must be stored in a cool, dry location. Tightly sealed bags, plastic containers, and metal canisters are good storage containers for dry goods."