July arabica coffee (KCN26 ) on Friday closed down -8.80 (-3.19%), and July ICE robusta coffee (RMN26 ) closed down -122 (-3.50%). Coffee prices plummeted on Friday, with arabica posting a 9-month low and robusta posting a 1-week low. Weakness in the Brazilian real (^USDBRL ) is undercutting coffee prices,…