i have a little battery operated grinder that looks sort of like a torch. you put the weed into it and it has little blades that chop it up, the hash settles on the mesh screen at the bottom (some even finer stuff goes through the mesh) but it gets clogged really quick and most rests on the mesh itself. i then just used a sharp knife to scrap it off the mesh and parts of the grinder and then out of the bottom plastic catching bit too. hope that helps mate