The photo of the bowl listed in the original post does appear to have at quite aggressive grinding element at the base. Thus, I would be a little concerned about brush wear if using it every day. I use the mortar bowl from a ceramic mortar and pestle set. The interior is rough but not super aggressive. It whips up a lather quite quickly. The Amazon link in another shows some bowls that look like they would make wonderful lather bowls. If the bowl I currently use did not work so well, I might be tempted to get one of them.