So I was just reading with interest the conversation on recycling iso-pro canisters.  That usually isn't an issue for us as we just give away our leftovers as we are getting on an airplane to fly home.  But I do have a growing collection of 1lb propane canisters from our Colman grill we use when car camping.  Any thoughts on those?  They would be much harder to puncture as I believe the cans are steel, and if we could puncture them, could we recycle them with mixed metal?  I'm pretty sure they can't be refilled like the big ones for patio grills.

Found Myself Outside