This is a canning lines diagram. Craft Beverage Filler and Seamer Canning Lines. If you make craft beverages, the pride you take in brewing them is serious business. Canning is a method of preserving food in which the food contents are processed and sealed in an airtight container. 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 30 years in an edible state. Learn more details from this diagram, or try to make yours with ease.