Using this cup is easy. Just open the lid and pour your favorite hot or cold drink into it. It can keep your drinks at the right temperature for a long time, so you can enjoy them at your own pace. When it comes to cleaning, you can use mild dish soap and warm water. Avoid using abrasive cleaners as they may scratch the surface. Store the cup in a dry place when not in use to prevent rusting. And don't forget to keep the lid tightly closed to maintain the insulation effect.