u/Blondegirlie52

I recently bought a Wondermill Jr Deluxe and ran into some issues with the stone burrs. The first set I got were clearly defective with a chunk missing and stone pieces were being ground into the flour. I received an entirely new Wondermill jr deluxe and started testing it out but am still getting some small flecks of stone in the flour, even after running a bit of rice through. Does anyone have experience with this? Am I doing something wrong? It is so manual, running stuff through is such a waste of time and material. I just want to make bread!!!