>>1797371that's why you learn to refill fuel canisters anon.
i re-use the same 4oz isopro canister for a year just by refilling with regular chinatown butane canisters
all you need is this tiny $2 brass adapter and a kitchen scale
>b-but what if it blows upn-butane is less dense than isobutane/propane, as long as you charge it to the same mass you will always be underpressurizing the canister.
In fact you could purposely overcharge the canister with n-butane if you wanted extra fuel for less space