All American 921 Pressure Cooker / Canner Review

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The gasket-free American canner families hand down for generations.

★★★★½ 4.6 / 5 Best American Pressure Canner

Since 1930, Wisconsin Aluminum Foundry has built the All American pressure canner in Manitowoc, Wisconsin. Its defining feature is a precision-machined metal-to-metal seal — no rubber gasket to crack, replace, or fail. If you want a canner you buy once and use for the rest of your life, the 21.5-quart 921 is the American standard, backed by a lifetime warranty.

✓ Independently reviewed✓ Manufacturing verified✓ No manufacturer influence✓ Last updated July 2026
All American 921 pressure canner
In Short

The best home pressure canner made in America. Heavy cast aluminum, a gasket-free metal-to-metal seal, and a lifetime warranty mean it simply outlasts everything else. At it is a serious investment, but for canners, homesteaders, and anyone preserving at scale, it is the last canner you will ever buy — and it is genuinely made in Wisconsin.

Made in America Review Score

A Research & Evidence-Based review: scored on the same weighted six-criteria model as every product on this site. The score is calculated last, from the evidence below.

4.692 / 100
Build Quality (30%)9.5/10
Value (20%)7.5/10
Durability (20%)10/10
Design (10%)9.0/10
Warranty (10%)9.0/10
Made in USA (10%)10/10

Editor’s Rating: Excellent (4.6 / 5) — the American pressure canner to beat.

This product has not been hands-on tested. Our rating is based on verified manufacturing information, published specifications, independent reporting, retailer data, and long-term reputation.

At a Glance

Best forHome pressure canning
Ideal forCanning, preserving, homesteading, gifts
Made inManitowoc, Wisconsin
MaterialCast aluminum
Made in America Review Score4.6 / 5
Why Trust Us

We independently verify where each product is actually made and score it on the same weighted six-criteria model. Manufacturers do not pay for placement, and we accept no free products in exchange for coverage. See our review methodology.

Made in USA Verification

Verified: July 2026

The All American 921 is manufactured by Wisconsin Aluminum Foundry in Manitowoc, Wisconsin, where the company has produced pressure cookers and canners since 1930. We verified US manufacturing against the maker’s materials (allamerican1930.com) and the retailer listing.

American Manufacturing

Made inManitowoc, Wisconsin
Manufacturing statusMade in USA (cast aluminum)
CompanyWisconsin Aluminum Foundry — pressure canners since 1930
WarrantyLifetime warranty

Manufacturing Confidence: High Factory location verified (Manitowoc, WI) · continuous US production since 1930 · independent confirmation (retailer listing, industry reporting) · company confirmation (allamerican1930.com).

The All American Story

1909Wisconsin Aluminum Foundry is founded in Manitowoc, Wisconsin.
1930The first All American pressure cookers launch, setting a new industry standard.
TodayStill made in Manitowoc — over 90 years of continuous American production, gasket-free and lifetime-warrantied.

Pros & Cons

Pros

  • Genuinely made in Manitowoc, Wisconsin since 1930
  • Gasket-free metal-to-metal seal — nothing to crack or replace
  • Heavy cast aluminum built to last generations
  • Backed by a lifetime warranty
  • 21.5-quart capacity holds a large batch of jars
  • Doubles as a pressure cooker

Cons

  • Premium price ()
  • Heavy and large to store
  • Aluminum requires hand washing (not dishwasher-safe)

In Use

The seal

The metal-to-metal seal is the whole story. Positive-action clamps draw the lid down onto a machined rim, forming a steam-tight seal with no rubber gasket. That means no gasket to dry out, crack, or hunt down years later — the single most common failure point on other canners simply does not exist here.

Everyday canning

The 21.5-quart 921 holds a generous load of jars, making it well suited to putting up a harvest. Pressure canning is required for low-acid foods like vegetables, meats, and stocks, and the All American is the tool serious home canners reach for. Heavy cast aluminum heats evenly and holds pressure steadily.

Specifications

TypePressure cooker / canner
Capacity21.5 quarts
MaterialCast aluminum
SealMetal-to-metal (no gasket)
Made inManitowoc, Wisconsin
Price

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Products, prices, and specifications change over time. If you have spotted an error — or if you are with All American and can add detail — we would appreciate your help.

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Where to buy

The All American 921 is stocked in the Buy American Campaign Store.

Shop the All American 921

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How It Compares

  • Choose the All American 921 for a gasket-free, lifetime canner with a large 21.5-quart capacity.
  • Choose a smaller All American (the 910 or 915) if you want the same seal in a more compact, lower-cost size.
  • Choose cast iron like Lodge or FINEX if you want everyday stovetop cookware rather than canning.

Frequently Asked Questions

Is the All American canner made in the USA?

Yes — it is made by Wisconsin Aluminum Foundry in Manitowoc, Wisconsin, where All American canners have been produced since 1930.

Does it use a rubber gasket?

No — it uses a precision-machined metal-to-metal seal with clamping locks, so there is no gasket to crack or replace.

What size is the 921?

21.5 quarts — large enough to hold a substantial batch of jars.

Can I pressure can low-acid foods with it?

Yes — pressure canning is required for low-acid foods such as vegetables, meats, and stocks, and the All American is a top choice for the job.

Does it have a warranty?

Yes — Wisconsin Aluminum Foundry backs the All American with a lifetime warranty.

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What owners actually say

Reliable numbers are hard to come by here — the brand advertises thousands of ratings but its own on-page widget shows only a couple of dozen, and we could not verify an independent owner-review count, so we are not going to print one. What the owner forums show is consistent and useful. The number-one operational complaint is lid alignment: the lid seats crooked, steam blows out one side, and the canner will not come to pressure. The fix, repeated by experienced canners everywhere, is to tighten the six wing nuts in opposing pairs a little at a time rather than going around in a circle. Lubrication is the second: too much petroleum jelly on the metal-to-metal seal and it leaks; too little and owners report needing a rubber mallet to break the lid loose after processing. Getting the lid off after a cycle is the single most commonly mentioned gripe of all. And it is heavy and bulky enough that the manufacturer tells you never to lift it by the lid handle.

What owners love is exactly what they paid for: no gasket to fail, no gasket to buy, and a canner that gets handed down. Twenty and thirty year service lives are routine in these threads. The important distinction: almost every reported leak turns out to be a crooked lid or too much grease, not a defective seal. This canner has a learning curve, and most of what looks like a fault is the curve.

Should You Buy It?

Yes.

If you can, this is the last canner you will buy. Cast aluminum, a metal-to-metal seal, no gaskets to ever replace — made in Wisconsin since 1930. It is heavy and it is expensive, and neither of those things will matter in twenty years.

🛒 Shop This Product

The exact All American 921 we reviewed — cast at the Wisconsin Aluminum Foundry in Manitowoc, Wisconsin.

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Learn More About All American

Who Makes All American Canners?

Where it is really made, who makes it, and how the company has held on to American manufacturing.

Read the All American Brand Guide →