Classic: 2 to 3 grams, 200 mills of water at around 70 up to 80 C degrees, 1.5 to 3 mins depend on preferences. Please, do not exceed temperature 80 C degrees.
After you have finished brewing, take the leaves out of the cup/teapot – if they remain in the water too long, they start releasing tannins. Tannin makes tea taste bitter, inhibits absorption of magnesium and iron which are necessary for the body to function properly.
All brewing tips is a guidance only. The best is experiment to find own way depend on preferences.