Ideal for grinding herbs, spices, seeds, nuts and cooking like a pro. Crush pine nuts to make pesto, your own curries, sauces and spice blends . Cleaning: The mortar and pestle can be easily cleaned with warm soapy water. Please do not put them in the dishwasher. Made of 100% high quality solid bamboo wood: natural, durable and eco-friendly. Refer to the photo for the inside diameter of the mortar, your preparation will not overflow the bowl. The polished handle is comfortable to hold in the hand.