Why Espresso in America Is So Bad
medium.com
medium.com
The opinion of anybody who thinks that South American coffees are the best in the world is already suspect. True experts may argue between East African, Arabian, and Pacific islands coffees as being the best at any given time (e.g. Yergacheffe, Sanani, Mattari, Kalossi, etc.) but I don't know of anyone who would say that South American coffees are the best. In fact, I don't know of any that even exceed the better Central American coffees.
Brazil may be the #1 producer by sheer volume, but that's not because their product is better.