December arabica coffee (KCZ24) Friday closed down -8.20 (-3.36%), and November ICE robusta coffee (RMX24) closed down -141 (-2.87%). Coffee prices sold off Friday, with arabica falling to a 3-week low. A jump in global coffee exports weighed on prices Friday after the International Coffee Organization (ICO) reported that global coffee exports rose +12.2% y/y in July to 11.29 million bags and that global exports from Oct-Jul rose +10.5% y/y to 115.01 million bags. Last week, arabica coffee soared to a 13-year nearest-futures high, and robusta surged to a record high on concern that excessive d…