I use a 110g size canister as my go-to and refill it after every weekend trip from a 450g one with one of these https://www.amazon.com/Plus-Canister-Shifter-Adapter-Function/dp/B00U2EE6M2/ref=mp_s_a_1_12?dchild=1&keywords=isobutane+fuel+canister+refill+adapter&qid=1624589819&sprefix=isobutane+fuel+canister+re&sr=8-12
No guess work ever on partially filled canisters and the cost savings from never having to buy 110g canisters pays for the adapter.
A 110g canister is $5, 450g canister is $10.
>These things are not new. They have been available for years,
Looks like nothing more than the GasSaver+ with different graphics and red color. Quite literally. Probably made in the same factory. Talk about marketing and branding.
This line, in particular, seems a BIT of a head-scratcher -
>"So Flottmann and his friend Frank Healy got together and started designing a solution to this ubiquitous problem. "
As Mom would say, "I think someone's so full of sh**, their mouths are full."
I've found 8oz of alcohol to go a lot further than that even with an inefficient stove. One reason people like alcohol over canisters is the pain of not knowing how much fuel remains in a partially used canister, especially if it has been a while since you used it and can't remember. And also even if you know how much fuel remains, it can be a pain point to have a lot of partially used canisters around, none of which have enough fuel for your trip. My boyfriend bought one of these things and they work really well. He says the key to it is to put the canister you want to empty in the sun and the canister you want to fill in the freezer for a little while.
another option to consider is getting a fuel coupler to transfer fuel between canisters. I have a 4oz canister I'll refill from bigger ones instead of carrying those since they won't fit in my pot.
You could get one of those double lindel valve adapters and use them to refill the canisters that do work with your stove from the colemans.
You can refill your canisters! I buy the largest size canisters from walmart, and refill a couple small ones I keep around from them. Not a perfect solution because you end up recycling the big ones, but definitely better than buying 6oz at a time. Alternatively, alcohol stoves...
Way easier. Nobody needs exact grams or whatever. Nobody cooks that exactly in the wilderness when some days are warmer and some are cooler. You just need an approximation. Also, this G-Works tool really works: https://www.amazon.com/Plus-Canister-Shifter-Adapter-Function/dp/B00U2EE6M2 The way we use it is to place the canister we want to transfer fuel FROM in the sun and the canister we want to transfer fuel TO in the freezer.
I have this one bought via Amazon: https://www.amazon.com/gp/product/B00U2EE6M2/
https://www.amazon.com/Plus-Canister-Shifter-Adapter-Function/dp/B00U2EE6M2/
Something like this? There's a bunch of different ones on Amazon and other places. Also a bunch of YouTube videos on how to use properly.
A halfway option: https://www.amazon.com/Plus-Canister-Shifter-Adapter-Function/dp/B00U2EE6M2
Another option: https://sectionhiker.com/no-cook-backpacking-by-kim-safdy-of-outdoor-herbivore/, https://www.the-backpacking-site.com/backpacking-gear/stoveless-backpacking-meals/, https://www.irontazz.com/stoveless-backpacking/, https://pmags.com/going-stoveless-cold-food-for-thought. Note that you do not simply add cold water to what you would normally bring, for example, pasta doesn't work. You must choose the right foods that come out tasty. And for the first day you can bring a pizza, subs, fried chicken or other things like that.
The specific adapter I have doesn’t appear to be made anymore but it was made by G-Works, who now sell this: https://www.amazon.com/dp/B00U2EE6M2/ref=cm_sw_r_cp_api_fab_PogDFb4XWX9S7. There are cheaper versions under constantly-changing names on Amazon and by all accounts they work fine too. Here is a Skurka article: https://andrewskurka.com/nifty-refill-transfer-stove-fuel-backpacking-canisters-g-works-gas-saver/