& ltp> 1. Prickly pricks and gold pricks may contain some heavy metals such as lead and cadmium in the production process, so when purchasing, we should choose products produced by regular manufacturers and avoid using inferior Prickly pricks and gold pricks. & lt/p & gt；
& ltp>2. Before use, clean the rapier and Jin Jian with clean water to remove possible residual dust and impurities. & lt/p & gt；
& ltp>3. When making tea, Jian Zhan and Jin Zhan can only be used to make the same kind of tea. Do not mix different kinds of tea, so as not to affect the taste and quality of tea. & lt/p & gt；
& ltp>4. Jianzhan and Jinzhan also need to be cleaned frequently during use to keep them clean and hygienic. & lt/p & gt；
& ltp> In short, if properly used and maintained, both the pointed cup and the golden cup can be used for drinking tea, which will not cause harm to the body. & lt/p & gt；