Originally Posted by Unicorniclops
If you look at the graph on the previous post you'll see a long, slow heating at 205-201F is just about the perfect temp to get good decarboxylation without decomposing the THC to CBN.
Here's the graph I look at:
To my eye, that's telling me that at 252°F for 27 minutes I'm going to get about twice as much THC, compared to what happens at 201°F for however long. It doesn't say what happens to the rest of the THCA, I guess CBN. (Why not 7 minutes at 293°F? Marginally better, but longer at slightly lower temperature means I worry less that I'll pull it before it's hot enough.)