The concept of fair trade labeling, which guarantees coffee growers a negotiated pre-harvest price, began with the Max Havelaar Foundation's labelling program in the Netherlands. In 2004, 24,222 metric tons out of 7,050,000 produced worldwide were fair trade; in 2005, 33,991 metric tons out of 6,685,000 were fair trade, an increase from 0.34 percent to 0.51 percent.[38][39] A number of studies have shown that fair trade coffee has a positive impact on the communities that grow it. A study in 2002 found that fair trade strengthened producer organizations, improved returns to small producers, and positively affected their quality of life.[40]
The espresso method forces hot, but not boiling, pressurized water through ground coffee. As a result of brewing under high pressure (ideally between 9-10 atm) the espresso beverage is more concentrated (as much as 10 to 15 times the amount of coffee to water as gravity brewing methods can produce) and has a more complex physical and chemical constitution. A well prepared espresso has a reddish-brown foam called crema that floats on the surface.[54] The drink "Americano" is popularly thought to have been named after American soldiers in WW II who found the European way of drinking espresso too strong. Baristas would cut the espresso with hot water for them.
