3x5

Here is a standard method to distinguish the characters of tea.

Brewing 3g tea leaves in a bowl with 150 ml boiled water for 5 minutes.
Then....
First, tea farmers would use a china spoon to press tea leaves together gently to see the color of tea soup.
Second, smelling the fragrance kept on the spoon to find out the characters of tea.
Last, taking a sip of the tea soup to taste its sour, sweet(on the tongue), bitter, astringent, sweet(on the throat), fragrance carefully.
Actually, people are not used to drink tea like this way because it is for evaluating but not for enjoying. The normal way is to use tea pot to brew tea leaves or use tea bags with a cup or a mug usually.

Here is another interesting point.

3g tea leave * 5 minutes in a bowl of 150 ml boiled water = 5g tea leaves * 3 minutes in a bowl of 150 ml boiled water

Of course, more tea leaves, more re-brewed times.
While the concentration is conforming to your favor, separating the tea leaves from tea soup to have a wonderful enjoyment. With same tea leaves, you can make it twice generally. :)