Pressure Canning for Beginners: Safely Preserve Low-Acid Foods
TL;DR: Pressure canning is the only method approved by the USDA for preserving low-acid foods such as green beans, corn, meat, and soups. A dial-gauge or weighted-gauge pressure canner reaches 240 °F (116 °C), hot enough to destroy Clostridium botulinum spores. Always follow a USDA- or NCHFP-tested recipe, adjust PSI for your altitude, and never…
