[Coco] Sort of OT: Recapping

[Andrew]

My main concern (and perhaps it isn't as warranted as I think), when it 
comes with using a metal lidded container, is not so much with the 
acetone or any other solvent's evaporation properties, but what is left 
behind (the flux on cotton):

There is (admittedly extremely low) a possibility of spontaneous 
combustion occurring - not from the acetone, but the combo of rosin and 
cotton.

Granted, this isn't an "oil soaked rags" type situation, and maybe I am 
a bit overly paranoid, but I'd rather take a bit of cheap and easy 
precaution, vs a house fire. But that's just me.

If anyone has an objective source or two I could reference that says 
otherwise (on the spontaneous combustion possibilities of pine resin 
impregnated cotton), I'm more than willing to listen, though.

Andrew L. Ayers
Glendale, Arizona
phoenixgarage.org
github.com/andrew-ayers