Well now I’m curious. What do you imagine the contaminants might be in very white spice? Are there any colorless alkaloids or other substances that can be pulled from MHRB other than DMT? And would these contaminants form crystals that are identical or very similar to DMT freeze-precip. crystals?

Good comments here about boiling powdered MHRB, but what are peoples' thoughts on boiling time for powdered caapi? It can be hammered just paritally to break up and soften those really big chunks, and then processed into dust using a strong blender. Sure, it's not authentically Amazonian, but then, one would think creating all that surface area is a perfectly acceptable technological improvement.

Some comments here suggest that maybe just shorter soaking in hot acidified water could work well. But there is indeed lots more "sludge" (actually loads more) when caapi is processed this way...and maybe that sludge is loaded with good stuff you wouldn't want to waste?