Originally Posted by Ringodoggie
It's not evaporating off the THC that I'm concerned with.
At both 240F (THC) and 280F (CBD) no (or very little) THC is going to evaporate. However, at 280F for 60 minutes, all the THC will convert to CBN in that length of time. Yes?
So, it's not about evaporating it off as much as it is converting it from THC to CBN.
And, you are suggesting even a higher temp and a longer time so I have to believe that all the THC will have been converted to CBN by then. Again, Yes?
CBN can exist without it being a degradation product of THC, not sure we figured out how the plant does this but. I've seen tests of early week stuf where there is CBN present without any THC (its all in small amounts of THCa at that point)
Given the fact that CBN isn't quite as psychoactive as THC and more psychoactive than CBD, I would assume that the conversion and or boil off of thc to THC D8 and CBN would be the cause of the reduce efficacy of the batches i made that exceeded that 311* temperature.
would be attributed to that conversion.
I'm not sold it being a direct conversion. there may be parts at play but i don't think science has figured that out.
you could always test it, take a gram split it 4 ways take note of what temps you set and what the temps at whatever you are holding to decarb actually get too, put it into a carrier oil
take note of which one has the effect you need, that way science doesn't matter at that point, you've landed close to what your body is looking for.