Page 84 - @ccess 2 Reader´s Book

The color of the tea should be light yellow and very
aromatic, with a bright fragrance surrounding the tea space.
If the tea tastes sweet, then it is the brew of what we call
15
“guan” leaves; if it is not sweet but bitter, then it is a brew
16
of old tea leaves. But if it tastes bitter at first but after you
swallow it has a sweet aftertaste, then it is true tea! 17

Source: https://goo.gl/3XhAPW

15 We were unable to translate this specific jargon from such an ancient context.
Mysteries will seep through Master Lu’s text. We suspect that would have been true
even in his time.
16 Here Master Lu is not talking about aged leaves, but rather leaves that were left to
grow on the tree longer. These are often called “huang pian” nowadays.
17 Like life, the wise know that the bitter and sweet must be together.

Reader's Book 83