1 Litre Capacity: Makes 4-6 cups. We recommend 800ml water for optimal stovetop heating. A perfect capacity for family and friends sharing. Stylish Glass Teapots - Perfect visibility for judging tea strength, and surely grace any table and occasion. All glass articles are brittle, so be careful with this teapot when using or washing. Borosilicate glass is heat-resistant, light-weight and strong. 304 Stainless Steel Infuser - Fine and dense filter, Suitable for all types of tea brewing. The roomy filter allows tea leaves to fully expand and provide full infusion of the leaves. Stovetop Heating: Borosilicate glass is well-known for low rate of thermal expansion and high thermal resistance. It is stovetop friendly for gas, electromagnetic stove and more. Safe Use For Extreme Cold and Hot: The teapot can withstand instant temperature change from -30 ℃ to 150℃. Suitable for boiling hot or icy cold water.