Canning is a method of preserving food by processing and sealing it in airtight containers. Canning with a pressure cooker is a safe and effective way to can low-acid foods, such as vegetables, meats, and fish. Pressure canning uses high pressure and temperature to kill harmful bacteria and spores that can cause spoilage and foodborne illness.
Pressure canning is more involved than water bath canning, but it is necessary for safely canning low-acid foods. The high pressure and temperature of a pressure cooker help to penetrate food more deeply and kill harmful bacteria and spores. This makes pressure canning a good choice for canning meats, vegetables, and other low-acid foods.