This whisky is a very special release of almost equal parts 27-year old (29%), 10-year-old (35%), and 7-year-old (36%) Ohishi Whisky Sherry Casks. While the older whisky provides depth and structure, the 7 and 10-year-old whiskies give zest and complexity to the final product. 40.5% ABV.rom the Kumamoto Prefecture on the island of Kyushu in Japan, the Ohishi Sherry Cask is a whisky distilled from rice and aged in first and second-fill sherry casks. The Ohishi Distillery uses at least 30% gohyakumanishi rice grown on its own fields, rounded out with mochi rice Kumamoto. This special release is comprised of nearly equal parts 27 year-old (29%), 10 year-old (35%), and 7 year-old (36%) Ohishi sherry casks.