Thanks norad45, I went with that Idea (Modified Turkey pan aluminum) for the edc but for the bob, I am using the stainless steel cups that attach to the bottom of your 32oz nalgine bottle. I saw a video of a guy up in Sweden try the rock in the water method that alvacado had said and it was the SURVIVAL: Episode 3 - Quest for The Stone video. It didn't look that productive but the theory is there.


Stone Heating

Nalgine Cup
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Failure is not an option!
USMC Jungle Environmental Survival Training PI 1985