its from personal experience - like i said - i put the butane thru my bho machine - it was liquid in the dish for a short while - like 1 minute or so, before it all evapped - during that time while it was liquid i added the spice (freebase) and it didnt disolve at all. when the butane was gone there were my spice xtals - looking exactly the same as when i added them - perhaps just a bit cleaner.