By Jason McLure Bloomberg August 31, 2009 Coffee exports from Ethiopia, Africa’s largest producer of the beans, are expected to rebound to about 171,000 metric tons this year after shipments fell to their lowest level in six years last year, an official with the Ethiopian Commodity Exchange said. “Early assessments indicate a very good potential for a bumper harvest of coffee,” said Eleni Gabre-Madhin, chief executive officer of the Addis Ababa-based exchange, in an interview on Aug. 29. “We are expecting at least 2007/2008 tonnage.” Shipments fell from 170,888 tons in 2007/2008 to 133,993 last year after a drought cut production and Japanese importers largely stopped buying Ethiopian coffee after finding high levels of pesticide residues in shipments. Better rains this year in the main coffee-growing areas will lead to more production during the country’s October to December harvest. Ethiopian coffee trees will also produce more due to their cyclical nature, in which harves...