Home Food Preservation
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Collapse ▲Interested in learning to preserve your own foods?
Introduction to Canning Video
No registration fee
This video is designed for those who wish to learn about canning as a home food preservation method. This video introduces canning methods and discusses best practices for safe and quality home-canned products. This course will prepare you for boiling water and pressure canning instruction.
Pressure Dial Gauge Testing/Inspection
The dial gauge of your pressure canner should be checked for accuracy and overall condition every year before you begin preserving foods for the season.
Why testing your canner’s gauge?
The handing, constant use, and storage conditions can affect the accuracy of your canner’s gauge and eventually the safety of the food you want to preserve.
Research-tested recipes for pressure canned foods are based on specific temperatures and times to kill harmful bacteria. If the pressure is lower than that recommended for processing, the internal temperature of the food will not be adequate to kill all the bacteria and spores which can produce harmful toxins that can cause illness or death.
If a dial gauge is inaccurate and the processing temperature is higher than recommended, the food inside the jar may be overcooked affecting the quality of it.
Brands that can be tested:
- Presto
- Maid of Honor
- National
- Magic Seal
Other brands cannot be tested since we do not have specific information on the gauges and their calibration. Please contact the manufacturing company for assistance with other brands not included here.
Make your appointment!
Free dial testing it’s done at Cooperative Extension by appointment only. We are located at9495 NC Highway 305, Jackson, NC.
Call EB Odom, Family and Consumer Sciences Agent, for your appointment at 252-534-2711.
What to bring to your appointment:
Bring your canner lid with its rubber gasket and dial gauge. Do not bring your canner unless you have questions about its condition.
For more canning information check out our NC State Extension Home Preservation site.