The Kura

In the Keio era of the late Edo period (1867), Yukichi Hosaka — originally from Echigo province, modern-day Niigata — arrived in Yuki and founded a sake brewery. The city was no ordinary place. A proud castle town celebrated since the Kamakura period for Yuki Tsumugi, an exquisite hand-woven silk fabric whose craft would eventually earn UNESCO Intangible Heritage recognition, Yuki had long been home to sake breweries, miso makers and merchant houses. Yukichi planted his roots here, and they held.

Tradition & Innovation

Through 155 years, Buyu faced tests that would end lesser breweries. During the Second World War, the government requisitioned the brewery's metal sake vessels — the very tools of the craft. Rather than cease production, the Hosaka family improvised with wooden vats, keeping the fires burning. In the aftermath, over half of Yuki's breweries never reopened. Buyu did.

The sixth-generation owner and representative director, Daijiro Hosaka, carries that resilience into every season — guided by the family's guiding principle: 納得のいく酒造り — sake brewing that truly satisfies.

Pure Kinugawa Water

Where great water flows, great sake follows. Buyu draws its brewing water from wells sunk deep into the brewery's own grounds, tapping the underground flow of the Kinugawa river system. This soft water originates as snowmelt in the mountains above Kawaji Onsen in Nikko, Tochigi Prefecture — filtering slowly through layers of earth over many years before arriving beneath Yuki.

Its softness coaxes the inherent character of each rice grain into the brew, producing sake with a gentle, rounded mouthfeel that has become a hallmark of the Buyu style.

The Right Rice

Buyu uses sake-specific rice varieties — 酒造好適米 — chosen for their unique structure. Unlike table rice, sake rice develops a large, starchy core called the shinpaku, which allows koji mold to penetrate deeply and convert starch into fermentable sugars with precision. It also withstands intensive milling without crumbling, enabling brewers to reach the refined flavours that premium ginjo and daiginjo expressions demand.

The result is sake with a purity and depth that begins long before the first grain enters the vat.

Craft Over Volume

Since 1996, Buyu has brewed entirely with a dedicated local team in Yuki, moving away from the traditional model of importing outside toji from Echigo. The result is a brewery where knowledge, seasons and relationships accumulate year on year in the same hands.

Their guiding principle is simple and uncompromising: quality over quantity. Every batch is held to the Hosaka family's own standard of satisfaction — a bar that, over six generations, has only risen.

Buyu in Australia

Sake Nami is proud to bring Buyu to Australia — a brewery that rarely exports, making these bottles all the more worth seeking out. From the polished Junmai Daiginjo to seasonal showstoppers like the Shiboritate Nama, each release reflects the quiet excellence of Yuki's most enduring kura.

Shop Buyu →

Know Your Kura

Buyu's range spans from everyday expressions — the robust Tokubetsu Honjozo — to the charmingly named Chichin Puipui, a playful nod to Yuki's spirited character. Behind every label lies the same unyielding craft, the same soft water, the same dedication that has defined this brewery for over 155 years.

Explore the full story at buyu.jp ↗