SelzeroWe are out here acting like corporations with a profit motive are going to make any effort to protect the future of mankind.
refraction 
@selzero a paper bottle would plainly not work. at most it can be reinforcement.
ohir@elexia @selzero Long time ago in the past century we then kids used paper cups (real tight carton, zero plastic) to boil water and tea in them on the small bonfire. Cups were attached to some freshly found stick by two pieces of thread to allow us keep their bottoms precisely at the right flame. 40 such cups weighted less than hefty pot you would use otherwise for your two day mountain trip.