I would say filter it out, and then preform a reX on the dirty spice.
Anything that is not wanted, such as lye, will not dissolve into a np solvent. So just decant the solvent from whatever doesn't dissolve and either freeze precip it or evaporate it to achieve your clean dmt. You can always do multiple pulls on the contaminated stuff to make sure you get it all.
Everything published by Gone-and-Back are the mad rantings and ravings of a mind who yearns to be free and thinks he knows what he is talking about. However, these are just delusions made to feel that freedom, because that freedom will never come. Any experiments done are purely figments of the imagination, and are falsified to the highest degree. Nothing should be taken seriously from a crazy mans mind.