It used to work for me and now I'm struggling with the reduction of initial ~14 grams of purported harmaline.
I've made three attempts so far, apparently all failed.
Attempt 1.
I didn't use enough vinegar, as a result only a small fraction reduced. I wasn't aware of it at first. During the basing, not knowing it was harmaline and not THH, I didn't bring the pH high enough - I stopped basing around pH 10.3. I'm assuming the supernatant still contained a significant amount of harmaline and I poured it down the drain, because after the cleanup and additionally a Manske, I was left with something like 7 grams (so a 50% loss).
Attempt 2.
I used much more vinegar, but probably still not enough, because the product still had a harmaline feel to it, although I also felt some THH.
The strange thing is it weighed closer to 10g. So how did the 7g increase to 10g? It must have been heavily contaminated.
Attempt 3.
This time I used plenty of vinegar and added some HCl.
After 9 hours the liquid was a pale yellow and didn't glow green in UV. However, the undissolved zinc looked very different: instead of the fine powder, which after the first two attempts looked almost like a liquid metal, this time it had turned into a very coarse powder and even containing porous clumps like pumice stone.
I didn't base it straight away, but let it sit overnight to let some of the residual HCl evaporate. In the morning it was dark colored again and glowed green in UV
So I'm assuming even if it had reduced to THH, it subsequently turned back to harmaline overnight?