Not Dishwasher Safe! The pleasure of the product and the character of the wood are preserved as long as possible, by simply washing the mortar, after use, only with lukewarm water and with a detergent and then dry immediately! Please do not put on a heater. For the best possible care, rub the mortar and pestle regularly with cooking oil and then wipe dry. In addition to the care, the beautiful grain is particularly good effect! Diameter Please Select +/- 5%,