Using this cup is easy. Just open the lid and pour in your drink. You can use it for hot coffee in the morning or cold juice in the afternoon. The double - insulation will keep your drink at the right temperature for a long time. When it comes to cleaning, you can simply wash it with warm, soapy water and a soft sponge. Avoid using abrasive cleaners as they may scratch the cup's surface. Also, don't put it in the dishwasher. Store it in a dry place when not in use to prevent rusting.