The One About Tea or Black Coffee.

If you take a look at the attached photo you might wonder
that eh is this a cup of tea or black coffee ?

This is indeed a cup of tea, pu er tea from China.

Last time when people says that these pu er tea is as black
as black ink I used to laugh at them and silly them.

But now.... now... I think it is really black lah !!

Why is that this kind of tea is so dark and black one hor ?