Canning Score
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Is the Mirro 22-Quart Pressure Canner a recommended pressure canner?

Last reviewed July 2026.

Yes — it's the equipment class the USDA processes were written for. A stovetop, weighted-gauge canner in the seven-quart-jar class NCHFP's guidance describes — and usually the cheapest way into it. The 3-piece 5/10/15 psi regulator means no dial to test annually (NCHFP: weighted gauges need no accuracy checking), but also no pressure readout at all, and no way to fine-tune between the fixed weights. Aluminum, not usable on glass-top ranges, and we could not verify a published warranty length — the trade-offs the price implies.

The facts on file

VerdictUSDA-process basis — USDA-process basis — the equipment class the processes were written for
Typestovetop · weighted gauge — 3-piece 5/10/15 psi regulator, no dial
CapacityHolds 7 quart jars per load. Not for glass-top or ceramic ranges per the manufacturer.
Marketed as“The cheapest seven-quart-class canner” Amazon ↗

Sources — read them yourself

How to read this

The line that matters in home canning equipment is who stands behind the claim. USDA process schedules were developed on stovetop pressure canners — NCHFP describes the equipment class and has stated plainly that those processes were not developed for electric multi-cookers. A manufacturer's own thermal validation can be genuine engineering and still not be an authority's recommendation — see what "meets USDA guidelines" does and doesn't mean. And a boiling-water canner is the right tool for high-acid foods and the wrong one for everything else.

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Canning Score indexes what NCHFP, USDA and university extension programs have on record about canning equipment, with attribution — we publish no process times and no safety advice. Verdicts describe the state of the authority record for an appliance class, not a guarantee about any jar. For tested recipes and process schedules, use NCHFP (nchfp.uga.edu), the USDA Complete Guide, or your state extension office — or the Seal canning guides, which work food-by-food from the same sources. If an authority publishes new guidance, the page changes — the authority always wins.

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