I don't quite understand why someone would think that the pickle jar would implode. The way he has it rigged up it ain't gonna happen. Trust me your not gonna hurt a canning jar till you drop it. I am a home canner over a hundred half gallons or quarts each year for....,, over 25 years now. I do between 75 and a hundred jars of dill pickles each year and I don't do the hot bath I stick the jars in a 350 oven for 12 minutes after hot pack and seal. All in all it's a pretty slick set up that looks like it works very well.