Still using a 1930s pressure canner (from National Pressure Cooker Co.) that's been used by my family for 5 generationssirJ69 t1_j1hmrbm wrote
Reply to comment by Andyb1000 in Still using a 1930s pressure canner (from National Pressure Cooker Co.) that's been used by my family for 5 generations by ubermaker77
It is the same. Pressure canning is used to preserve your crop so one of the services they provide is calibrate pressure canner gauges.
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