Canning potatoes at home is a safe and simple way to preserve your harvest for long-term storage. Since potatoes are a low-acid food, they must be pressure canned to prevent the growth of botulism.

Pressure canning is the process of preserving foods in a kettle pressurized with steam. It’s the only safe method for low-acid foods. If it’s not done properly, home canning can have a high risk of ...