Washing Tea

First boiled water, wait a while till it cools down, use it to
rinse tea and clean dust, save the
tea leaves in a settling bowl[1], till it cools down, then steep, the
aroma will release naturally.

Translated from Wen Zhen Heng: On Superfluous Things. (Zhang Wu Zhi)
[1] Also called "tea container", used for sheltering rinsed tea.