Someone is attempting to do an caapi extraction. (https://www.dmt-nexus.me/forum/default.aspx?g=posts&t=17029)
It's a basic extraction that uses food grade lye and vinegar. Someone followed the extraction, but cannot get past the lye section, because the liquid remains black with no settlement. Does it matter how slow one adds the lye?
"Talent does what it can, Genius does what it must"