Welcome on Board Espresso Set - Service for 6 In the Welcome on Board collection, you will find tableware accessories, tumblers and glasses. INSTRUCTIONS: This product is designed for table use, not adapt for cooking or direct fire. Microwave only 90 seconds. MAINTAINANCE AND CLEANING: To extend the life of this article, it is recommended to avoid using abrasive cleaners. To prevent stains from coffee and tea we recommend washing immediately after use. This product is dishwasher resistant.