To use these mugs, simply fill them with your favorite hot or cold beverage. They're great for coffee, tea, or even a cold drink. Since they're dishwasher safe, you can easily clean them after use. Just place them in the dishwasher like you would with other dishes. They're also microwave safe, so you can heat up your drink right in the mug. However, when taking the mug out of the microwave, use a hot pad as it can get very hot. For long - term maintenance, try to avoid dropping or hitting the mug as it's made of terra cotta and can break. With proper care, these colorful mugs will serve you well for a long time.