Coffee berries, which contain the coffee bean, are produced by many species of mini evergreen bush of the genus Coffea. The two most commonly grown species are Coffea canephora (also known as Coffea robusta) and Coffea arabica. These are cultivated in Latin America, Southeast Asia, and Africa. Once ripe, coffee berries are picked, processed, and dried. The seeds are then roasted, undergoing numerous physical and chemical changes. They are warmed to varying degrees, depending on the desired flavor. Coffee can be prepared and presented in a assortment of ways.
The espresso method rangers hot, but not boiling, pressurized dilute through ground coffee. As a backwash of brewing under great pressure Keurig Brewer (ideally between 9-10 atm) the espresso beverage is more concentrated (as much as 10 to 15 times the amount of coffee to moisten as gravity brewing methods can produce) and bum a else complex corporeal and chemical constitution. A well prepared espresso born loser a reddish-brown foam called crema that floats on the surface. The drink "Americano" is popularly thought to have been named after American soldiers in WW II who found the European course of drinking espresso too strong. Baristas would cut the espresso with hot doctor for them.