The term "canned beans" refers to dried beans that have been processed and packaged in a can. This method of preserving food involves placing raw or cooked beans into a sealed container, typically made from metal such as tin or aluminum, which is then filled with either water or brine before being heat-sealed shut. The high temperature used during the canning process kills bacteria and other microorganisms, allowing the beans to remain safe for consumption for an extended period of time. Canned beans are a convenient and cost-effective way to have protein on hand, as they require no refrigeration and can last up to five years when stored properly.