no need to burn them. As soon as you see they are males, chop them, cut it up a little. Preheat oven to 250, when it hits that turn it off, and put a tray with your males on it. 15 min or so they should be dry, grind up in a blender or something, funnel into a tube, cap, butane
Your males shouldn't ever get close to releasing pollen if you're doing your job looking for them.Anyway, I do it with everything. males, tops that don't go in the cloner, leaves that fall off, and all trim/stems from harvests. Basically everything that isn't roots goes into the tube and turned into oil