save $$ top-quality pressure cooker/canner
If you've seen the prices on the All-American pressure cooker/canners and don't wish to spend that amount of money, here is how you can get the same thing for a LOT LESS MONEY.
The vintage National pressure cookers made in Eau Claire, Wisconsin years ago use the same basic technology...no gasket to fool with...it's a machined fit for the lid...with turn-screws to secure the lid.
The only difference is the "pressure-relief". The old Nationals had a screw-valve to adjust the pressure relief. It wasn't too handy because you needed to watch it all the time and watch the pressure gauge to keep your pressure "in-line".
All-American (and most others these days) use a weight to vent the pressure automatically. Very Safe and Practical.
If you have an old National gasketless aluminum pressure cooker/canner, you can make it exactly like the high-priced All-Americans very cheaply and simply:
1. remove the National "screw-type" pressure vent. (will probably require a pair of "water-pump pliers" (channel-lock type).
2. into the threaded hole that the National vent came out of (on the lid), install an All-American pressure cooker vent pipe. It uses the same threads as the one you took out. (Will require a 7/16 wrench)
Tighten it securely, but be careful not to overdo it and strip the aluminum threads in the lid.
3. Use the 3-way All-American (or Mirro) pressure cooker weight on the new vent pipe. (flat circular shape with three different settings 5 lb. 10 lb. and 15 lb.
You now have the same cooker as All-American as much less cost.
You can find the parts by doing a search on Ebay.
If you don't have an old National Pressure cooker/canner, you can also find them very reasonably on Ebay. Shipping is expensive on these "heavy" items, so try to find one near where you live.
NOTE: These are the cookers with the "thumb-screw" lock downs, and are the larger pressure cookers.
I've done 3 of these cookers this way and they all work GREAT!!!
Be sure that your pressure gauge is functional so that you can verify the pressure relief of the pressure regulator (3-way weight).
I hope someone can use this information.
Bruce (Junkmanme on GardenWeb)