It forgot to write an important thing.
Do not use the teapot because it is powdered green tea(matcha).
Originally, this only puts hot water in though powdered green tea is beaten with the tea whisk.
Put in the cup and pour hot water.
The temperature of hot water is a right 90 from 60 degrees.
The temperature of hot water is a right 60~90 degrees.
When the temperature is high, a lot of
catechin is extracted.
(In a word, it becomes bitter.)