Jetboil small pot works for me, but I boil twice: once for drinks, then once for food (2x/day: b-fast and dinner... lunch is always cold). That's just under 1liter capacity... I like the jetboil system because it cooks so fast and is so convenient. Its not great for frying or that type of cooking, but I usually go with self prepared, dehydrated (MSG-free) meals. The Jetboil is a fuelmiser, but is a little heavy unless you trim the weight off the burner assembly by drilling holes strategically into it to cut the weight. I took almost 50% of the weight off that way...
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If a robot could carry my stuff, I'd make him carry me with my Osprey on my back any way.