Coffee

Coffee is a beverage, usually served hot, prepared from the roasted seeds of the coffee plant. These seeds are almost always called coffee beans. Coffee is the second most commonly traded commodity in the world, trailing only petroleum. A total of 6.7 million tonnes of coffee were produced annually in 1998-2000, forecast to rise to 7 million tonnes annually by 2010.[1] Coffee is one of humanity's chief sources of caffeine, a stimulant. Its potential benefits and hazards have been, and continue to be, widely studied and discussed.