There is a general misconception that there is a particular “espresso coffee bean”. This does not exist. Any coffee from any origin can, and is, used to make espresso. Differences of origin, species, and roast level, are all factors that affect the quality of espresso.
IMO, the best coffee for espresso is 100% Arabica, freshly roasted (within 24 hours), with a medium to medium/dark roast level.
More on Quora thread.
