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Simulate a canning process and its F0 in your browser
The Canning Calculator classifies a food by pH, builds the cold-spot heating curve for a can in a retort, and adds up the F0 sterilizing value as you change the schedule. It also checks the can's internal pressure and double-seam measurements. It is a planning and teaching tool, not a source of home-canning times: home canners should follow research-tested USDA and NCHFP processes.
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About these kitchen tools
A canning process simulator. The Canning Calculator classifies a food by pH against the 4.6 low-acid line, builds the cold-spot heating-and-cooling curve for a can in one of eight retort systems, and adds up the F0 sterilizing value live as you change the schedule. It also checks the can's internal pressure against its buckle and panel limits and grades double-seam teardown measurements. It is a planning and teaching tool, not a source of home-canning times; home canners should follow research-tested USDA and NCHFP processes.
Frequently Asked Questions
What does the canning calculator cover?
It simulates a thermal process for canned food. It classifies the food by pH, builds the cold-spot temperature curve for the container and retort you choose, and computes the F0 sterilizing value, the can's internal pressure, and double-seam measurements. It does not give home-canning times or altitude adjustments; for those, follow research-tested USDA and NCHFP guidance.