Unlike normal food, canned food can stay safe at room temperature. But how is it made, and how does it keep safe for so long?
First, you need to prepare the food. Second, seal the food into an airtight container. Third, heat the container to a high temperature.
The container will block outside bacteria, air, and light. Heating the container will kill any germs or bacteria in the food. This process will keep the food safe to eat for a long time.
Unlike normal food, canned food can stay safe at room temperature. But how is it made, and how does it keep safe for so long?
