Posted by jimg.allentown on August 16, 2016 at 10:35:36 from (173.49.143.137):
In Reply to: Pressure canning. posted by caterpillar guy on August 16, 2016 at 10:05:53:
Do have it tested. 22 psi is too high for a home canner. 10 to 15 psi are the common standards. To see what kind of forces are at work, calculate the inside area of the canner. Pi times the diameter gives you the area of the top and bottom. Now, take the diameter times the height. That gives you the area of the sides. Now, multiply that by 22 pounds, and you have the total force contained in the canner. You will find a shockingly high amount of force contained inside that vessel. Then recalculate using the correct 10 or 15 pounds. Quite a difference. Add to that, the superheated liquid contained within, and you will see that you have a potentially fatal amount of energy to be released in the case of a rupture. Please have it tested and recalibrated in necessary.
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