>>1626189Butane stops vaporizing at 32F and isobutane at 10F. If you use a winter fuel blend like MSR 80/20 in an upright stove like the jetboil, the propane is lighter so it will float on top and burn off, and then you'll be stuck with a stove that cannot run the other 80% of isobutane fuel. Even worse if you're running coleman butane/propane fuel.
If you get an inverted stove like
>>1625615 or pic related you can flip the canister so the propane floats to the top and pushes the liquid butane through to burn first.>inb4 just warm up the fuel canister in a bowl of water or in your jacketYeah try balancing your jetboil in a bowl of water. Even if the temps are above 10F for isobutane or 32F for butane, the vaporization rate slows so the stove will work less efficiently. Then you can watch your """jet""" boil struggle to take 10 minutes to warm up a cup of water