whether it be the acidic or basic phase, heat does not "degrade" mescaline; there is nothing
to suggest that the molecule decomposes with heat. the issue to be wary of is evaporation, observe its boiling point with respect to free base and salt forms.
"Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck