Diancha, or tea-whisking, is a way of preparing tea that dates back to the Song Dynasty (960-1279). By heavily whisking the tea, a thick layer of foam forms at the top.
Click the video to see how it is made and how this technique enriches taste of the tea.
(Video source: International Channel Shanghai)
原文地址：http://en.people.cn/n3/2023/0522/c90000-20022007.html