Canning Calculator
Safe food preservation with precise processing times, yield calculations, and safety guidelines. Preserve your harvest with confidence.
Processing Time Calculator
Essential Canning Safety Guidelines
Always use tested recipes from reliable sources
Never alter acid levels in tested recipes
Process jars for the full recommended time
Adjust for altitude if above 1,000 feet
Check jar seals after 24 hours
Store properly sealed jars in cool, dark place
Use within 1-2 years for best quality
When in doubt, throw it out
Temperature Guide
Water Bath: 212°F (boiling)
Pressure Canner: 240°F (10 PSI)
High Altitude: Increase pressure
Storage: 50-70°F ideal
Timing Tips
Start timing: When water returns to boil
Don't reduce: Time or temperature
Cool naturally: Don't force cooling
Check seals: After 24 hours
Jar Sizes
Half-pint: Jams, jellies
Pint: Fruits, pickles
Quart: Vegetables, large batches
Half-gallon: Special uses only