Using this Ferm Living set is super easy. Just fill the carafe with your favorite drink, like water, juice, or iced tea. Then pour it into the glass and enjoy. You can place the set on your bedside table to have a drink at night, or on your office desk to keep you hydrated during work. When it comes to maintenance, hand - wash the glass and carafe with mild dish soap and warm water. Avoid using abrasive cleaners as they may scratch the mouth - blown glass. If you're not satisfied with the product, you can return it within 30 days according to our return policy.