Blend Your Own Sake at a 170-Year-Old Brewery in Niigata – Private Tour & Tasting with Expert Brewers

Shirataki Sake Brewery and the Soft Snowmelt of Echigo-Yuzawa

A mere 75-minute shinkansen ride from Tokyo into the mountains of Niigata leads to the snow country of Echigo-Yuzawa, a destination best known for winter delights: beautiful and deeply-piled powder snow, skiing and snowboarding, and natural hot springs resorts. The region’s characteristically soft water is also a central part of its identity, and has given rise to a rich culture of sake brewing. Snow accumulated through the long winter becomes the abundant groundwater that local breweries draw upon to craft their sake.

Among these, Shirataki Sake Brewery dates back to 1855, when founder Tosuke Minatoya began brewing in Yuzawa, which was then an important stop on the Mikuni Kaido route linking Echigo with the capital of Edo – today known as Tokyo. Travelers and merchants passing through the region were among the earliest drinkers of Minatoya’s sake. More than 170 years later, this history remains at the core of Shirataki’s identity.

Central also to the brewery’s identity is its marriage of heritage tradition to bold innovation. In 1990, during an era when Niigata sake had become definitively associated with the clean, dry tanrei karakuchi style, Shirataki bravely began to beat a new path forward with younger drinkers in mind. The result was Jozen Mizunogotoshi – a clear, light, approachable brew whose bottling and presentation emphasized its more modern character that welcomed a new generation into the tradition of enjoying sake.

Looking Closer: Yeast, Koji, and the Science of Fermentation

The experience begins in the private VIP lounge. Get acquainted with the general story of the brewery over a welcome drink of Niigata’s soft wellwater, the same that is used to brew Shirataki’s sake. Next, move into a very different environment, touring the Showa Brewery – a historic brewery building returned to service after 23 years of disuse, including a special traditional koji room normally closed to the public.

In the brewery tour, guided by a former brewmaster or another well experienced brewery expert who specialized in koji making, discover the depth of sake at the microbiological level. View koji mold and brewing yeast through a microscope, compare the aromas associated with different strains, and taste cultured koji while learning how these microorganisms transform rice and water into dramatically different flavors.

Koji is fundamental to the production of sake from rice. A mold cultivated on steamed rice or other grains, its enzymes help to break the complex starches of rice into simpler sugars that yeast can in turn ferment. It also comes in different varieties of its own. Yellow koji is the traditional standard of sake brewing, while the more citric and acidic white koji is more typical of shochu distillation. And this difference goes beyond the academic, when the tasting stage offers a chance to discover firsthand how unconventional choices in fermentation culture can reshape the character of a sake.

Tasting, Testing, and Concocting: Blend a Sake of Your Own

Back in the VIP lounge, shift from biological science to gastronomic art. With illuminating commentary from one of our WSET-qualified sake professionals, delight in an in-depth tasting of five contrasting sake profiles while learning about the brewing choices and methods behind them, discovering directly how each influences the resulting dryness, sweetness, acidity, aroma, umami, and/or texture.

The lineup of tasting sakes has been deliberately prepared to make those contrasts easy to recognize even for those with limited experience in sake. One emphasizes smooth balance, while another dry crispness. One another foregrounds umami, while another offers a sweeter and fruitier expression, using a distinctive yeast cultivated from fruit rather than a conventional sake yeast. Yet another presents a bright and acidic, juicy character as a result of citric acid produced by the white koji more commonly associated with shochu.

After getting a sense of the character of each of the five sakes, making notes on their flavor and aroma and mouthfeel, move to the blending experience. Guided by the staff, combine them in different proportions, adjusting the balance to arrive at a mix that suits your own personal palate. When your blend is complete, brewery staff bottle the blend in a 500 ml souvenir bottle that you can then finish with one final personal flourish: christening the blend with its own unique name and using a calligraphy brush to create an original label.

Sake Brewing in Season: Winter Brewery Tour (Additional Option)

During the colder months, participants can also choose a seasonal brewery tour as an optional add-on to the experience. Available from approximately October through April, the optional tour offers a closer look inside Shirataki’s operations during sake-brewing season. Exclusively for Wabunka guests, this is a private-access tour – and includes access to the Ginjo-ko — a compact secret brewing space located inside the complex, reserved for experimental batches, prestige brews and hand-crafted limited releases. The Ginjo-ko is rarely opened to visitors (subject to timing and availability).

Where the main experience concentrates on microorganisms, ingredients, tasting, and blending, this approximately 30-minute addition allows a chance to observe those factors in action, in the context of the working brewery. Go beyond theory and get an actual look at the process of turning rice, koji, yeast, and water into sake.

Sake brewing has traditionally been the labor of winter, during the downtime when agricultural workers have completed the harvest and cannot yet begin the next season’s planting, and when low temperatures support the natural cooling required for effective fermentation. Touring the brewery therefore gives winter visitors another perspective on how Echigo-Yuzawa’s climate and brewing culture have developed together.

From Tradition to Innovation, One Glass at a Time

Sake is, at its heart, a simple thing made from simple ingredients. And yet at the same time, endless variations are possible in how they are handled and expressed. This private brewery experience plumbs the depths of those variations, revealing how regional nature and brewers alike all leave their own signatures within each bottle.

At Shirataki, that insight also reflects a larger story. A brewery founded in 1855 continues to work with the snow-country water and techniques that shaped its history, yet it has repeatedly looked for new ways to welcome more people into sake culture. From Jozen Mizunogotoshi’s appeal to young drinkers in 1990 to the present-day team’s continued experiments seeking new ways to push the envelope, tradition here is treated not as a set of limiting walls but as a foundation to build upon. The dynamic blending experience represents just another part of that.

With Echigo-Yuzawa Station only a few short minutes away on foot, this experience also fits quite naturally into a broader exploration of this mountainous hot spring town, in between dipping in the springs or skiing – or just embarking on a gustatory journey of Niigata’s broader food and drink culture. It’s the perfect choice for sake enthusiasts and curious travelers alike, including anyone looking to gain deeper insights into fermentation and other facets of Japanese food culture. Discover the rich ties between the climate and culture of Echigo-Yuzawa, known for its abundant snow, and the traditional craft of sake brewing.