History Of The Hakushu Distillery
Tasked with producing an original whisky distinct from those originating at Yamazaki distillery, the Hakushu distillery was built as Suntory’s second distillery in 1973 on the 50th anniversary of the start of construction at its sister facility.
The distillery, which has created a rich variety of whiskies since its opening, is one of only a few distilleries in the world to be located at a forested, high-elevation site. Initiatives designed to coexist with the rich natural environment at the base of Mount Kai Komagatake include setting aside about 820.000 square metres of forested land and protecting bird life by establishing a wild bird sanctuary.
Hakushu distillery is located near the pristine waters of the Ojira River, which has been designated by Japan’s Ministry of the Environment as one of the highest-quality water sources in the country. The construction of the distillery, which is surrounded by expansive forest, was the culmination of a many-year search for a site that could best take advantage of Japan’s natural bounty in the process of making whisky. A willingness to experiment through a process of trial and error has led to the production of a remarkable variety of single malt whiskies at the facility, bringing to fruition the goal of creating a world-class whisky that would please the delicate Japanese palate. Hakushu distillery, which produces Hakushu single malt whisky and an array of other world-renowned, high quality whiskies, continues to pursue new whisky flavours and aromas in a beautiful natural setting.
Hakushu’s natural features and climate
After carving a path down through the rock of Mount Kai Komagatake, clear-flowing rainwater joins the Ojira River and the Jingu River to form an alluvial fan of white sand at the foot of the mountain. The name Hakushu, which means “white sandbar,” reflects the geological character of the site. The clear air and cool, humid climate of Hakushu’s vast forests allow the distillery, one of only a few such facilities in the world to be located at an elevation of 700 meters or above, to produce high-quality whisky through a slow, unhurried process.
The pristine waters of Hakushu
Water from the mountains is a gift from the gods, and indeed, the natural water of Hakushu could only be made through the mysterious workings of the great natural wilderness surrounding the site, which is known for the clear-flowing Ojira River, considered one of Japan’s most exceptional sources of water. The soft water created as snow cover on the slopes of the Southern Alps melts and seeps down through the area’s granite strata serves as the beginning of the malt whisky produced by Hakushu Distillery.
The Hakushu Whisky Process
The real process of making single malt whisky begins with a procedure called mashing, in which malt is ground into fine pieces and mixed with hot water in a tank called a mash tun. As starch in the mash is converted into sugar, the mixture is slowly filtered to create a clear liquid known as wort. Suntory produces whisky in Hakushu, an area that is blessed with exceptional natural water, precisely because the quality of the water used influences the flavour of the wort. Next, the wort is transferred to a washback, and yeast is added. The yeast generates alcohol, carbon dioxide gas and congeners of flavour in a process known as fermentation. Hakushu distillery uses wooden washbacks. Despite demanding temperature control requirements, wooden washbacks not only take advantage of the site’s natural bounty, but also help produce refreshing yet complex single malt whiskies through the action of the distillery’s naturally occurring lactic acid bacteria and other microorganism populations.
The wash produced during the fermentation process is distilled twice in rows of pot stills of different shapes and sizes. By using different stills, the distillery is able to produce a variety of whiskies with flavours ranging from light to full-bodied. Direct-fired distillation at a temperature of about 1.200°C creates an even greater range of flavour-contributing substances.
Hakushu distillery’s use of a variety of processes and techniques from the mashing stage through distillation allows it to produce an array of single malt whiskies with a variety of characters. Following distillation, whiskies are placed in casks and allowed to slumber in the distillery’s aging warehouse until they have mellowed. The Hakushu distillery primarily uses hogshead casks, which are suitable with the clear air and cool, humid climate.