Altitude Canning Adjustment Calculator
Calculate altitude adjustments for water-bath and pressure canning processing times and PSI.
Inputs
min
ft
Results
Adjusted Processing Time
40 min
Required PSI
0 PSI
Time Added20 min
PSI Added0 PSI
Altitude Above Baseline4,000 ft
How to Use This Calculator
- Enter the base processing time from your tested canning recipe at sea level.
- Enter your altitude in feet above sea level.
- Select your canning method (boiling water bath or pressure canning).
- The calculator shows the adjusted processing time and required PSI, plus adjustments added for altitude.
- Use the adjusted time and PSI for every batch to ensure safe preservation at your elevation.
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