How to Test a Pressure Canner Dial Gauge (and When to Replace It)
A dial-gauge pressure canner relies on an accurate gauge for food safety — if the gauge reads even 1-2 PSI off, you can end up under-processing low-acid foods without ever knowing it happened, since nothing about a slightly-off gauge looks or feels different during canning. Why Dial Gauges Drift (and Weighted Gauges Don’t) A dial…