Powerful but unfortunately with abrasion

The mortar is externally well so far processed and looks very classy, ​​just for the price it is in any case obviously a bargain but:
It's no use if I have a powerful mortar which unfortunately is so powerful to me. that it also abrades the granite in the inside with.

I just want in fresh herbs with which I want to refine a court final, no granite mix in sand, which is then at the
Guests between the teeth crunching. That's how bad spruced chanterelles that simply corrupts every dish.

Therefore, only one star for the price, and another for the optics