My wife moved one of mine when it was at full pressure, I don't know what happened but the pressure plug blew, luckily it was directed away from her - it shot super heated steam for maybe 30 seconds - a very long 30 seconds, it steam cleaned my ceiling and left what looked like a quarter inch of hot water all over my floor. very frightening, you don't want to be frightened like that, even though they are well made, they have redundant safety measures - one or two blow out plugs and the bobbler itself, they can still fail, I wound up blocking all the failsafes with a bag and the pressure went to 25 lbs, now THAT is scary. But it does show you that the good cookers will hold up pretty well.