The All American Pressure Canner is a a top of the line canner. You can't go wrong buying any of the models available.
I own both the Presto Pressure Canner and an All American 921 Pressure Canner.... and I have to say both are good canners. I used to always tell people if you can afford it, go with the AA.
However after having both brands for a couple of years, I find I use my Presto just as much as I use my All American Canner. So it really is just a matter of personal preference.
They are a bit different from other canners in the way they work. Other brands of pressure canners use a rubber gasket in the lid to form the air tight seal.
The All American Canner however does not have such a seal. It uses a screw down clamping system that fits the lid to the body of the pot metal to metal. This forms the seal that allows the canner to come to pressure.
These canners have same features as other canners as far as safety features. they have an overpressure plug and vents to release pressure
A dial gauge allows you to monitor the pressure reached during processing.
The All American comes in several model sizes. The smallest holds 4 quart jars. This is the smallest size recommended for pressure canning. The largest is a giant! It will hold 19 quart jars! This would be for the serious canner.
Will hold 10 1/2 quarts of liquid. It will hold seven pint jars or four quart jars.
Holds 15 1/2 quarts of liquid, ten pint jars, or seven quart jars. This is a standard size that allows for single layer processing.
The canner I own and love. This canner holds 21 1/2 quarts of liquid. The canner is tall enough that pint jars can be double stacked. Thus it will hold 19 pint jars, or seven quart jars.
I have read a lot of reviews of the All American Pressure Canner. They are overwhelmingly positive.
The only complaint that I have noticed mentioned on more than one occasion is that the lid is sometimes hard to remove after processing. Almost always if someone mentions this problem there are several responses stating that they have had no problems and suggest lubricating the lid with oil. This prevents the lid from sticking.
I've never had my lid stick.
The only time I've ever had issues with my All American Pressure Canner is one time when I had the lid screwed down crooked. The lid started steaming out the side which alerted me to the problem (which is a good thing!) I had not reached pressure yet, I was still in the venting time so I simply turned off the heat, realigned my lid and started over. No problem.
If you are not sure what I mean by the 'venting time' Check out this page. It goes through the process of using a pressure canner step by step.
When you are thinking about what size All American Pressure Canner to get you need to remember that the models 930 and 941 are BIG. Very Tall. So if you think you want that capacity to do large batch canning and get 14 jars done at a time they are the way to go. However... be sure your stove can handle the size. It is the height that causes issues at times. Measure the distance between your stove top and hood (assuming you have a hood) there needs to be some space between there so steam can vent and you have room to get jars in and out of the canner.
My hood is not high enough to allow that room. My canner is the 921 model which can double stack pints, but not quarts. I love it. It is perfect for my needs. My family is shrinking and I find myself doing more pints lately anyway.
Consider also the weight of the pot itself. You won't be moving it when full, but the canner itself is large and heavy.
But if you have the large family and you have the room on your stove consider the larger canners. You don't have to run it double up with 14 quarts. You can run it with just 7 quarts, but that capacity is there if you need it.