December arabica coffee (KCZ24) Wednesday closed up +8.10 (+3.07%), and January ICE robusta coffee (RMF25) closed up +95 (+2.09%). Coffee prices Wednesday extended this week’s rally, with arabica posting a 7-week high and robust posting a 3-week high. Brazil’s coffee farmers are holding coffee supplies back from the market in hopes of higher prices, which has tightened coffee supplies in the cash market and is boosting prices. Also, the outlook for hot and dry conditions to persist in Minas Gerais, Brazil’s biggest Arabica coffee-producing region, is supporting arabica prices. Meteorologist Cl…