Hey Blast ... you sure about that??
Take a look at the Bear Grylls episode, or try it yourself at home. In order to boil the water in a plastic bottle, you really wind up frying the bottle over the flames. The plastic comes out blackened, shriveled up, and very nasty. It doesn't look good at all.
Food for thought!
other Pete
Sounds like it's time to experiment, but it'll have to wait until next weekend. I'll report back the results.
-Blast