The Sistema Microwave Soup Mug is ideal for soups and stews at the home or office. Simply add your food and close the distinctive Sistema easy-locking clips, open the steam vent, and cook or reheat. The new and improved steam release vent ensures your microwave stays free from food splatters. Heat contents in microwave and eat straight from the container. This product is stackable and safe to use in the dishwasher (on the top rack), the microwave (with the vent open), or in the fridge and freezer. Designed and made in New Zealand. Phthalate free and BPA free.