coffee - Coffee is one of the most widely consumed beverages in the world. It is prepared from the roasted seeds – commonly referred to as beans – of the coffee plant, and is usually served hot but can also be served cold. A typical 7 fluid ounce (ca. 207 mL) cup of coffee contains 80-140 milligrams of caffeine, depending on the method of preparation.[1] Coffee represents 71% of all the United States caffeine consumption followed by soft drinks and tea.[2] Coffee, along with tea and water, is one of the most frequently-drunk beverages, its volume amounting to about a third that of tap water in North America and Europe.[3] In 2003, coffee was the world's sixth largest agricultural export in terms of value, behind wheat, maize, soybeans, palm oil and sugar.