Quote:Preparation of ayahuasca typically involves boiling/simmering the plant material for long periods. If it degraded rapidly ayahuasca wouldn't be active.
That's absolutely right, however Bob11 asks about freebase DMT, in Ayahuasca we are dealing with the protonated form of DMT (Tannate, if im not mistaken). So, it's still valid question.
Salts are stable in solution and dont simply get "damage/evaporate" in boiling aqueous solution.
However, i dont know what effect boiling aqueous solutions have on freebase DMT. I wouldn't go any higher than 45-50C basically because i dont know if/what potentially negative effects that can have.
Good Luck, and i hope a chemist can chime in and bring some light.