Marcos Roberto, uses a machine to rake coffee beans inside a greenhouse used to dry coffee beans at the "Fazenda da Ilha" farm in the central state of Minas Gerais, near the city of Alfenas, Brazil, on Tuesday, April 23, 2002. This is one of the innovative techniques used by a new generation of farmers which are trying to introduce the concept of single state farms in Brazil and increase the value of their harvests. (AP Photo/Dado Galdieri)