In another thread Cosmic mentioned
Here is my story. I bought a clay pipe few months ago when I started smoking a pipe and I smoked it only 2 times probably. The bowl was getting very hot making it impossible to hold so I had to use the stem instead for holding the pipe. Well, just few days ago I finished smoking a pipe and I was cleaning it and while cleaning my pipe I needed to smoke another pipe I just grabbed my clay pipe and I was very surprised because the bowl was not getting hot at all. I didn't do anything special and I was amazed how my smoking habit has improved by itself. I don't feel like I got my black belt though, I guess I am trying to get the green one.When you can smoke a thin clay pipe and keep it cool, you'll get your black belt in pipe smoking, ha ha.