I was slightly startled that people I watched do some canning recently were also doing this via the net. But having found a pressure canning vat thing, so the lids would pop down sealed on. It was amusing.
Too cool, so now I must find one of these-- I love having a new project as to kitchen gadgetry! I'm sure it will take into winter for me to find one.(It is like a steamer-doubleboiler, but with inner colander thing reaching all the way down to the bottom. No doubt there's an actual name. A mystery for me to solve, whee!)