Keep an eye on the dust you dump out of the bowl. You don't want to remove actual Meerschaum, just cake.



When the reamer stopped producing results, but I still had a noticable amount a cake in the bowl, I grabbed a deep socket that would fit in the bowl and wrapped a bit of electrical tape around it. I then wrapped the sand paper around that and kept at it.





Once this stopped producing desired results I switched to wrapping a bit of sand paper around my finger...and I kept at it.