The resulting tea powder is traditionally whisked into hot water, instead of steeped, to form a frothy drink.
You can adjust the taste for your own liking just by adding more or less than the recommended amount per cup.
The actual way to tell what good matcha is Are you uncertain about what good matcha is? It balances the nutty sweetness in the late budding Okumidori with the umami flavor from Yabukita.