Boiling does not degrade DMT (at least in the strictest sense).. if we are talking about the pure compound's boiling point, DMT's point of degradation is far far higher than 100 degrees in it's salt forms..
However.. since we are talking extraction from plants here: It's very likely that with certain plants prolonged heat can result in chemical complexes that either break down DMT OR somehow trap it in chemical matrixes; preventing extraction with NP solvent. Acacia pioneers nen888 and chocobeastie found this to be the case with plants like Acacia obtusifolia.. yields were found to be reduced with prolonged excessive heat. Plants like Mimosa hostilis or Acacia confusa clearly don't have this issue.. and many other Australian acacia's don't either.
So my argument here is that, yes, prolonged high heat can result in diminished yields with certain plants but that it has nothing to do with the boiling point of DMT.. it is the interactions of various compounds present in solution that can react - and as I said, either break DMT down or trap it within (currently not understood) chemical matrixes.
Is this speculative? Yes. But anecdotally, experienced people have found that some species don't like prolonged heat. We know that this isn't the case working with MHRB and ACRB.. so unless your from Australia and using local plants in your area I'd say you have nothing to worry about.
Here's a good example illustrating a different point but echoing the same sentiment .. why soaking material in ethanol for even 24 hours can result in nothing with some plants (some phyllodes for example), but then boiling that same material pulls good amounts of DMT out. DMT is very soluble in ethanol, especially if plant matter is ground down.. So why, in some cases is ethanol not working but heat is?. Maybe the heat needs to break certain things down in these cases.. no one really knows. But different plants can behave differently to one another.
