Ibaraki Prefecture is blessed with green mountain fields situated between Mt. Tsukuba and Mt. It rains abundantly in June, with long sunny days in July to August, and the air dries in September. Ibaraki's weather conditions are ideal for growing rice. Ibaraki's Koshihikari has a glossy sheen with few imperfections to the grain - markers of quality short-grain rice. The more you chew it, the sweeter it becomes and the more umami it produces.