Canning

Canning is a method of food preservation in which food is processed and sealed in an airtight container, including jars, as well as and steel and tin cans. Canning provides a shelf life that typically ranges from one to five years, although under specific circumstances, it can be much longer. A freeze-dried canned product, such as canned dried lentils, could last as long as thirty years in an edible state.

References

This article uses material from the Wikipedia article Canning, which is released under the Creative Commons Attribution-ShareAlike 3.0 Unported License (view authors).