FWIW, SWIM is in the process of an STB extraction with 300mg of MHRB that's over 5 years old. It was sitting basically in storage, forgotten. In plastic bags (the ones in which it originally arrived), with relatively stable temps and humidity through that time (in a basement).

SWIM used heptane for the extractions. After 3 pulls, SWIM had ~ 6g crystals. SWIM hopes to get up to 8 with all pulls totaled. Then a xylene pull to finish.

Just thought this could be somewhat heartening for those who think letting a root bark sit around for too long will degrade alkaloids. While SWIM can't be sure what the total extraction would have been with the fresh MHRB, SWIM is pretty pleased with the results so far.

That seems like quite a high yield for 300g! which tek are you using exactly?

SWIM uses standard STB 1:1 lye/root bark. SWIM did use only 1500mL water for 150g MHRB per jar, so it was thicker than some teks encourage. Also, he does put basified MHRB + heptane mix in very hot water bath and does a couple hundred turns end-over-end for each jar to boost spice migration to the heptane. OH! SWIM also salts the basified solution with close to 1:1 root bark to sodium chloride.

6 grams of DMT from 300mg of bark?

teach me your wizardry

Just had a good batch of MHRB, I think. And a pinch of luck.

...

nevermind...