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NOMACANO: New, Easy Way to Brew Tasty Coffee from Noma
(www.youtube.com)
The Oromo people would customarily plant a coffee tree on the graves of powerful sorcerers. They believed that the first coffee bush sprang up from the tears that the god of heaven shed over the corpse of a dead sorcerer.
I'm guessing that this method eliminates differences in pouring technique from person to person.
And filtering it eliminates fines and crema.
James Hoffmann agrees that crema looks beautiful but doesn't taste very good.
https://www.youtube.com/watch?v=XQ3TcpI2Lu8