Pressure canning outdoors is a popular option for many seasoned preservers seeking more space than their kitchen allows. While it offers numerous advantages, it also comes with its own set of considerations and precautions.
This guide will delve into the benefits and challenges of outdoor pressure canning, ensuring your experience is both safe and successful.
Benefits of Outdoor Pressure Canning
Space and Ventilation
Outdoor pressure canning provides natural ventilation and ample space, especially beneficial for those with limited indoor kitchen space.
It allows the use of various heating sources such as electric, propane, or natural gas.
Faster Heating
Most outdoor heat sources tend to heat faster than traditional household stoves, allowing for more efficient processing.
Outdoor canning.
Stacy Kirby, 2025, Clemson Extension Office
Equipment Considerations for Outdoor Pressure Canning
Gas Burner Specifications
When using an outdoor gas burner, a maximum of 12,000 BTUs is recommended, with 10,000 BTU being optimal to prevent damaging the pressure canner.
Excessive heat can warp the lid or bottom, rendering the canner unusable.
Electric Burner Requirements
If opting for an electric burner, ensure it has a minimum of 1,500 watts. It should:
- Be no more than 4 inches smaller than the canner’s diameter
- Be capable of supporting the full weight of the canner when loaded.
- Be commercial or restaurant-grade for improved durability.
How to Manage Outdoor Challenges
Wind and Temperature Fluctuations
Wind can cause inconsistent heat, leading to temperature fluctuations.
To prevent issues:
- Position your canning setup away from the wind
- Use wind guards to maintain a consistent temperature and prevent jars from breaking.
Cooling Jars and Avoiding Foreign Objects:
Let jars cool in the canner to prevent thermal shock.
Be vigilant about foreign objects like insects or leaves that can interfere with the process.
Outdoor Pressure Canning Safety Tips
While pressure canning outdoors offers benefits, such as space and faster heating, it requires careful consideration of equipment and environmental factors.
By taking these precautions, you can enjoy a safe and successful canning experience.
For more information, see HGIC, Pressure Canning Revisited.
