C'mon - pressure cookers are not all that expensive and they have other uses.

FWIW... I truly believe all the pubs about using a pressure cooker to reach a sterilizing temperature, but...

I suspect that if one was scrupulous about sanitation and hygene, it PROBABLY could be done at boiling-water temps. Meat is pretty much cooked at 165 deg F and WATERBORNE disease organisms are toast at or below boiling (nominal 212 DegF for the C crowd). I would not care to be the test subject for that, but it's something to wonder about.

Get a used pressure cooker at a yard sale and go buy a new gasket for it. Probably cost about what the scrap metal value is. The most versitile ones are stainless steel, and new, they cost more than the aluminum ones. Aluminum ones cook better if you're not using it as a pressure cooker - just keep the highg-acid stuff out of it (usual precaution).

HTH

Tom