Ceramic burr hand grinder ideal for most brew methods including pour over filter cafetiere and aeropressperfect for the home barista ceramic conical burrs produce more consistent grounds fully adjustable grinder with rubber base to prevent slipping while grindingheight 22cmwidth 18cmto adjust the grindunscrew fixing cap remove handle and nut stopper to reveal the adjustment nutturn the adjustment nut clockwise for a finer grind and anti clockwise for a coarser grindreplace the nut