torching is also how I clean my screens. I hold them with pliers to avoid burning my fingers, put a torch lighter on it, and then a quick brush with a metal brush, finishing by blowing on it(just blowing is enough too, but once I did that too quickly and touched my lip with the still-hot screen, so I had a burned lip). I find it way easier and faster as using iso, no messing with wet screens etc, just a simple torch and seconds later you can use the screen again.