shizuoka destillery potstill k imported barley 2025 secret warehouse north 5y puncheon 500mlIn mid 2025, the Shizuoka Distillery launched this Potstill K Imported Barley edition, using exclusively imported barley. This single malt whisky was distilled in the only remaining still of the legendary Karuizawa distillery. After just over five years of maturation in Puncheon bourbon casks, it was bottled at a robust 55. 5% ABV.