All American 921 vs 930 vs 941: Which Size Pressure Canner You Actually Need
If you are trying to choose between the All American 921, 930, and 941, here is the short version: most home canners want the 921. It holds 7 quart jars or 19 pint jars, it fits on a standard stove, and it is the size that handles a serious garden without taking over your kitchen. Step up to the 930 only if you can quarts in volume, because that is the one place it beats the 921. Step up to the 941 only if you have a dedicated propane burner, because at 34 pounds empty and 13-3/4 inches across, it does not belong on a household range.
That is the answer. The rest of this article is why, because the spec charts everyone links to will show you six columns of numbers and never tell you which number is the one that decides it.
First, the number on the box is not the number you care about
An All American canner labeled "21.5 quart" does not hold 21 quart jars. That figure is the liquid capacity of the pot, which is a measurement of the pot itself and not of the work it does. The 921 holds seven quart jars.
This trips up more people than any other spec in canning, and it is worth being blunt about it: when you are comparing canners, ignore the model number and look at the jar count. Those are two different measurements wearing similar clothes.
The comparison that matters
| Model | Quart jars | Pint jars | Empty weight | Overall height | Standard stove? |
|---|---|---|---|---|---|
| 921 (21.5 qt) | 7 | 19 (double stacked) | 18 lbs | 15-3/8" | Yes |
| 930 (30 qt) | 14 | 19 (double stacked) | 23 lbs | 19" | Check clearance |
| 941 (41.5 qt) | 19 | 32 (double stacked) | 34 lbs | 19" | No |
Jar counts are approximate and vary with the brand and shape of the jar, which is All American's own caveat and a fair one. Read that pint column again.
The 921 and the 930 hold exactly the same number of pints
Nineteen. Identical. The 930 is nine quarts larger in liquid capacity and five pounds heavier, and for pint jars it buys you nothing at all. Here are the two capacity panels straight off the canners, side by side:
Same pints. Double the quarts. That is the entire difference, and it is buried in row eleven of every comparison chart on the internet.
So the question is not "how much do I can?" The question is narrower and easier to answer: do you can in quarts or in pints?
- Mostly pints (jams, salsa, pickles, most vegetables for a small household): the 921 does everything the 930 does. Save the $50 and the counter space.
- Mostly quarts (green beans, tomatoes, broth, meat, anything for a family that eats it by the jar): the 930 cuts your batch count in half. This is where it earns its keep.
Here is a little note worth having: those pint numbers assume a rack between the layers. Stacking pints without a rack blocks steam from circulating around the jars, and steam circulation is the whole mechanism. Both the 921 and the 930 ship with two racks, so you already have what you need. If you buy a canner used, check that the racks came with it.
Your stove decides more than your garden does
People pick a canner based on how much they grow. Then it arrives and it does not fit. Measure first.
Glass-top stoves: the 910, 915, 921, and 925 are fine. The 930 and 941 are not. They are too heavy and too wide, and this is not a manufacturer being cautious. Typical flat-top weight limits run 50 to 60 pounds, and the listed weights are empty. Add 40 to 50 pounds of water and jars to a 930 or a 941 and you are at or past the limit of what the glass is rated to hold. Cracking a cooktop costs more than the canner did.
Gas and electric coil: every model works. But measure your height clearance before ordering a 930 or a 941. Both stand 19 inches tall with the lid and regulator on, and the underside of a range hood or an over-the-range microwave is a hard stop you will discover at the worst possible moment.
Width: the 941 is 13-3/4 inches across the inside, wider than the others, and it will overhang most burners. Heat that misses the pot goes somewhere, usually into your countertop.
The honest read on the 941 is that it is not really a stove canner. It is a canner for a propane burner on a porch or in a garage, run by someone processing a harvest rather than a grocery run. If that is not you, the 941 is not a bigger version of the right tool. It is a different tool.
What the extra batch actually costs you
The gap between the 921 at $499.95 and the 930 at $549.95 is fifty dollars. That framing makes it look like a small upgrade for a lot more pot, and people talk themselves into the 930 on that math alone.
But run it the other direction, the way you would run any tool you are going to own for thirty years. A canner batch is not just the processing time. It is come-up, process, and cool-down, and that is roughly an hour and a half whether the pot is holding 7 jars or 14. If you put up 56 quarts of green beans in a season, that is eight batches in a 921 and four in a 930. You just bought back six hours of your August for fifty dollars.
And if you can pints? Same nineteen jars either way. Same number of batches. The fifty dollars buys you nothing but a heavier pot to lift.
That is the whole decision, and it is why "get the bigger one, you'll grow into it" is bad advice here. You do not grow into a 930 by canning more. You grow into it by canning quarts.
Where the 910, 915, and 925 fit
The three models nobody asks about, briefly, because one of them might be your answer:
- 910 (10.5 qt, $349.95): 4 quart jars, 7 pints, single layer, 12 pounds. This is the USDA floor. A pressure canner has to hold at least four quart jars standing upright with the lid on to be used for USDA low-acid processes, and the 910 sits right on that line. Good for a small kitchen or a first season.
- 915 (15.5 qt, $399.95): 7 quart jars, 10 pints, single layer, 15 pounds. Same quart capacity as the 921 in a lighter, shorter pot. If you can quarts and never stack pints, this is the quiet right answer and it saves you a hundred dollars.
- 925 (25 qt): the 921 plus one inch. Same 7 quarts, same pints. That inch fits four half-gallon jars, which the 921 cannot take. If you are canning half gallons of apple cider or grape juice, this is the only reason to consider it.
A safety note while we are here, because it is the one place in canning where being casual has real consequences: do not use a 6 to 8 quart pressure cooker for canning. The USDA processes for low-acid foods were developed in canners similar to today's 16 quart and larger models, and the come-up and cool-down times are part of the total heat those process times assume. A small cooker heats and cools differently, which means the food can come out under-processed even when you followed the recipe exactly. There are no USDA process times for small pressure cookers. If you are canning low-acid food, you need a real canner.
If you are working with high-acid foods instead, jams, pickles, tomatoes with added acid, you do not need a pressure canner at all.
Related reading: How to Water Bath Can →
What a water bath setup looks like, and what belongs in it.
Why any of these are worth $500 in the first place
All American canners are made by Wisconsin Aluminum Foundry and have been since the 1930s. The design choice that matters is the gasket-free metal-to-metal seal: machined cast aluminum sealing against machined cast aluminum, held by wing nuts.
Every other canner on the market seals with a rubber gasket. Gaskets dry out, they stretch, they crack, and they are a consumable you replace every few seasons. The All American does not have one to replace. That is the entire argument, and it is why these show up at estate sales still working after forty years, and why we stock replacement parts for canners older than the people running them.
Spread $499.95 over thirty Augusts and you are paying about seventeen dollars a season for the pot. The jars and the lids will cost you more than that every year.
Common questions
How many jars fit in an All American 921?
Seven quart jars, or 19 pint jars double stacked with a rack between the layers. Counts are approximate and shift a little with the brand and shape of the jar.
Can you use an All American 930 or 941 on a glass top stove?
No. Both are too heavy and too wide for a glass cooktop. Loaded with water and jars they add 40 to 50 pounds to their empty weight of 23 and 34 pounds, which puts them at or over the 50 to 60 pound limit most flat tops are rated for. Stick with the 910, 915, 921, or 925 on glass.
What is the difference between the All American 921 and the 930?
Quart jars, and nothing else that matters. The 930 holds 14 quart jars to the 921's 7. Both hold 19 pints. The 930 is five pounds heavier, four inches taller, and $50 more. If you can pints, there is no functional difference between them.
What size pressure canner do I need?
At minimum, one that holds four quart jars upright with the lid on, which is the USDA requirement for low-acid foods. For most people the 921 is the right balance: enough capacity for a real garden, still fits a standard stove. Choose by jar count and stove fit, not by the quart number on the box.
Where to start
Work through it in this order and the choice makes itself. Measure your stove first, because that eliminates models before you get attached to one. Then answer the quart-or-pint question, because that is the only thing separating the 921 from the 930. Then buy the size those two answers point to, not the biggest one you can justify.
One thing worth knowing about timing: pressure canners sell out. Not as a sales tactic, just as a fact of the calendar. Demand for canners tracks the harvest, the whole country's harvest lands in the same eight weeks, and Wisconsin Aluminum Foundry builds these one at a time in Manitowoc. Stock gets thin by August and stays thin into fall. If you are planning to can this season and you already know your size, buying in spring is a very different experience than buying in September.
See the full All American lineup
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Every canner size we carry, plus racks, gauges, regulator weights, and the replacement parts that keep a forty-year-old canner running. Current availability is shown on each product.
If you would rather talk it through with someone who can look at what is actually on the shelf, email us at support@kooihousewares.com (or call the store if you prefer). We would rather spend ten minutes helping you pick the right size than sell you a canner you have to lift.
