And wandering totally OFF subject again, Drew, the WONDERBAG really DOES work!! But you MUST have whatever you are using for a casserole dish full almost to the top, otherwise it will be cooked but lukewarm!!! I am using the bottom half of a steamer, with foil over the glass lid, and keeping the lid in place with a bungee strap when we are travelling. BH loves the results; a full pot gives us 2 days meals; one straight out of the pot and the other warmed up on a ring the next day. It's great, sitting there, doing whatever you want to do, and knowing that your meal is just getting on with it, and not using any fuel, apart from what was used to start it off. IDEAL for Wildcamping!!!