Science considers to make clear, in damp environmentTeaCan rapid oxidation gives water BrownTeaRust, contain a variety of harmful metals such as cadmium, lead, mercuric, arsenic among them.

• 科学研究表明，在潮湿的环境中茶水会迅速氧化出褐色茶锈，其中含有镉、铅、汞、砷等多种有害金属。