The pipe is tougher than you think. I smoke only meer these days ..and in fact the same one all day every day as part of an experiment that I will write up at the end of the year. That said, I ream/scrape mine out every week using a kid's (blunt tip) swiss army knife. Take care to not press too hard and gouge the material. I also have a set of metal ear cleaners that I use to scrape out the shank. After all of this is done a good flush with warm water and buffing the outside with a clean dish towel and the pipe is smooth on the inside, clean on the outside and ready to smoke again for the next week. ..5 bowls a day.