Crushing herbs and spices releases more of their aromatic essential oils than chopping or food processing. With this mortar and pestle, you can expertly crush, grind, and blend ingredients to give your recipes a personalized touch and improved taste! The gorgeous natural grain and warm color of the acacia wood makes this set a unique addition to any kitchen. Hand wash with a mild soap and cool water. Do Not soak. Do Not put in the dishwasher, microwave or refrigerator. Extreme changes in temperature will cause the material to crack over time. Dry thoroughly. Occasional use of mineral oil on the inside will help maintain its appearance.