PRECAUTIONS: Pepper mill: use only black, white or green, dried, whole pepper grains with a diameter not exceeding 5 mm. Pink berries can only be ground in a mixture (max 15% pink). The mill is also suitable for dried coriander seeds. Salt mill: use only dry, coarse salts with a diameter of no more than 4 mm, sea salt and crystalline salt. Do not use the mill for wet sea salt. Wet sea salt mill: if sea salt is too wet, remove it and allow to air dry for 24-48 hours before re-inserting. If the sea salt adheres to the mechanism, loosen the upper knob and tap to release the mechanism. MAINTENANCE: Electrical mills: if the light is off, check that the contacts of the tank and the actuator are clean, clean them with a dry cloth if necessary; make sure that the bulb is in position, if it is in position it may not come into contact, then remove it and reinsert it. If the engine does not work, it must be returned, together with the product, in its original packaging complete with a warranty certificate duly completed at the time of purchase.