Okay that answers my question. So the first re-x left the oils in the bottom. They dried out and turned to powder and thought a re-x of the dried oils would maybe produce more crystals. Used room temp naptha and most of it dissolved leaving a very small amount of oils left on the bottom so he figured it was going to work but after evaporation he was just left with oil again and has to wait for it to dry out again. I've searched everywhere about the left over oils and couldn't find anything anywhere. So would it be smart to make changa with the oils?