It is used to weigh tea before infusion. As we know, we will use different quauntity of tea according to different number of tea lover. For example, if there are only 2 people who will share Oolong tea, they just weigh 5grams Oolong tea in Gaiwan and infuse them. Especially, it is very important to cup tea when tea expert want to test different grades of tea.
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