Important safety tip: Don't use butane in a Zippo!

[hoober]

I think that what lit up must've been the vapor that escaped during the transfer process or the remaining vapor leaking out of the vessel seams,ends, and outlet where the cotton exits. If it is cold enough we can carry butane around in a bucket (clear like water) and then use it like gasoline, lighter fluid, ect.

[J57ltr]

You know I have a butane related story. I had (have somewhere) a Portasol soldering iron, that started running low so I turned it upside down and filled it placing it near my stomach when I let go I was engulfed for a second and burnt the hair off my stomach through my shirt. So your not alone.

Jeff