The Biscotto stones in the Arodore kept dusting (even after I used it once). Yes, although I used it only once, whenever I wiped it with a paper towel, the towel took on the color of the clay stone.
I posted this in the huge Ardore thread, but Simone never responded to it. Will the dusting eventually stop? If yes, when? I don't want to be constantly ingesting clay dust.