Thoughts on refilling isobutane canisters
I have a hard time throwing things away and that can turn into a hoarding habit at times. For over 10 years I’ve been holding on to various isobutane fuel canisters in the hopes of burning that last bit of gas. So finally I purchased a refill valve on Amazon and decided to consolidate the gas into a single canister.
I punctured (swift blow with the pick of an ice axe) empty canisters to make sure all the gas was gone and weighed them:
- 3.4oz (small)
- 4.5oz (medium)
- 7.3oz (large)
Then I weighed full canisters:
- 7.4oz (small)
- 13.1oz (medium)
- 23oz (large)
Now I knew when to stop transferring gas either because a canister was empty or a canister was full. (I should also say MSR does an excellent job putting gross/net weight on their canisters which aligns with these numbers)
Next I took an bowl, filled it with an ice cube tray’s worth of ice, placed the destination canister inside...
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