To use this mug, simply fill it with your favorite hot or cold beverage. It's great for coffee, tea, or any other drink. When cleaning, you can wash it in the dishwasher or by hand with warm, soapy water. Avoid using abrasive cleaners as they may damage the matte finish. To keep it looking its best, dry it thoroughly after washing. If you drop it, it may break, so handle it with care.