High borosilicate glass gives this jug a crystal-clear body and makes it resistant to thermal shock up to 150°C. That means you can pour boiled tea and ice cube into this jug. As for cover, the designers chose one-pieced food-grade silicone, which is easy to clean and prevents mold or cracking; with a small hole above to balance air pressure. The eye-catching feature of the tea cup is its filter: 304 stainless steel makes it safe and durable, and the flat bottom allows it to filter water faster. Finally, so you can better experience the beauty of Chinese tea, the cup lid could also be removed and used as a seat for the tea basket.