Wed Aug 04, 2010 11:54 am
They should be fine. A pressure cooker basically is an autoclave. Some autoclaves can go up to 30psi range (270F) vs. the 15psi (250F) that most pressure cookers can do but the jars will hold up fine either way. It's more about how fast the heating/cooling cycle is rather than the temp.
PFC BN Army - 43rd Battalion Mashing Squadron