This YiWu cake can only be described as pure magic. 
Taste is not as one would expect for cake of this origin and age. It’s rather lighter with tones of raw cacao and precious wood that signifies clean and dry storage. 
It’s real depth and magic is in energy. I don’t know what kind of leaves  were mixed into these cakes, but I assume it was some very old trees with very deep Qi. 
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Once after serving this tea to group of friends, there was a spontaneous outbreak of laughter and people started to running around the room like a bunch of kids.. everyone asking “what was in that tea”? 
now, please don’t expect this tea work the same way on you. It’s still just tea leaves, all within law regulations. But if you are working with energy or are generally more sensitive person, you might feel this tea strongly.
* each cake is roughly 400grams