This is the original Piao I teapot made and patented by Piao I Enterprise Co., Ltd. This teapot is comprised of an upper chamber and a lower chamber. Brew the tea in the upper chamber. Once brewing is complete, press a button and the brewed tea drains to the lower chamber from where it can be poured for consumption at the desired time. This ingenious design prevents over-brewing. The upper chamber can also be removed leaving the lower chamber to serve as a teacup. Made of strong beaker glass, it is easy to clean and a pleasant design.