Upper teapot 480 ml Lower teapot 1200 ml Dishwasher safe. It can be placed directly on fire. It is borosilicate glass material. It is resistant to temperature differences and chemical reactions. It does not contain heavy metals, lead-cadmium. It is made of 100% natural, recyclable and ecologically accepted material. Thanks to the transparent glass bottom and top, you can easily see the color of your boiling water and brewed tea. It is suitable for contact with food.