I am using with great success the method described in other threads of cleaning clay and briar pipes with running hot water. Now the issue comes up as I have a new morta pipe with a bamboo stem. I am thinking to use also here running hot water for cleaning but I want to make sure I am not making a mistake. For the morta I think there should be no problem as it actually stayed for thousands of years submersed in water. For the bamboo stem I think it should be probably also ok also but I am not 100% sure. Any experience or thoughts?