This morning I did an interesting experiment: I stuffed about a .1 g nug into the middle of a long glass tube, put a finger over each end to starve the tube of oxygen, and heated the fuck out of it (red hot) above my stovetorch. As expected, the weed did not combust (because fire needs oxygen). As expected, a whole bunch of vapor and resin escaped the nug but had nowhere to go. As expected, the nugget came out very dark and crispy. This is actually really cool to watch. I'll make a video soon.