How do I adjust the grind setting on the Esperto Caffe?

The grind setting can only be changed while the grinder is actively running — start brewing a coffee first, then turn the grind adjustment dial toward '+' (clockwise) for a coarser grind or toward '-' (counter-clockwise) for a finer grind. The factory default setting is level 2, and you should only change the setting in small increments, observing the taste difference over 1–2 cups before adjusting again.