Here are the standard ways to brew 2 cups of Japanese tea by tea types. If you want to brew only one cup, a 4-5 g (0.14-0.18 oz) leaf amount will give you enough for a great tasting 2nd infusion. We hope this helps you in discovering your favorite way to brew your Japanese teas.
We suggest that you use your teapot and teacup to lower the boiling water temperature to the appropriate level for your tea. For example, if you pour the boiling water out from the kettle to pot, you can make the water temperature roughly 7-10 C(12.59-17.99F) low. Then you pour out the water from the teapot to teacups, and you can make the water temperature 7-10 C(12.59-17.99F) lower. This way, you can adjust the water temperature, prepare the warm teapot and teacup, and measure the necessary amount of water, all at the same time.