Your tube pouch is a neat update on the old blanket roll. I hate monster backpacks, and go with a maximum carry of a daypack balanced by my sleeping bag on a shoulder strap on one side and full canteen on the other. The advantage is you can unload it fast in an emergency. The downside is losing it. So I would consider some sort of paracord lanyard tucked into a pocket. You can lose the kit and retrieve it. As for boiling water in a 'situation?' I had a dead milk cow fall out of a Coast Guard truck on the Pacific Coast Highway once. The humorless state trooper informed me 'we had a situation.' And then there was this redhead......... But unless it's radioactive any container itself is being sterilised by the boiling process itself. So unless you hate minestrone go for it, situation or not. They aren't called 'hobo stoves' for nothing. <img src="/images/graemlins/grin.gif" alt="" />