Ohishi Distillery Brandy Cask WhiskyFounded in 1872, Ohishi sits near the tiny village of Mizukami, and is the closest distillery to the source of the Kuma River, one of the fastest flowing rivers in all of Japan, renowned for its superior water quality. Ohishi Whisky is distilled entirely from rice, and here is aged exclusively in ex Cognac casks. Because of the rices efficient fermentation, Ohishi uses a pot still made from stainless steel, as opposed to copper.