Considering I scorched the bejesus out of a cob one time with my zippo, the flames that erupt from one of those jet lighters could have set the whole cob on fire. I did actually try one with a cob, just for the sake of science. I had one of my old cobs and found a jet lighter left by someone out on our outside tables by the smoking area. I didn't even give it much thought at the time, but I lit that sucker up and it definitely put a burn on the side of my pipe. I really wasn't expecting it to shoot out that far. Those things definitely shouldn't be used to light a pipe you care about, little on the tobacco in a pipe you DON'T care about. I just see it vaporizing your tobacco and making it taste very unpleasant.