Mars Shinshu
Japan's highest-altitude whisky distillery at 798m in the Central Alps of Nagano. Originally built in 1985, shuttered from 1992-2011, then reopened during the Japanese whisky boom. Produces Mars Maltage and Komagatake single malt brands. Cool mountain climate provides ideal slow maturation.
At 798 meters above sea level, where the Central Alps pierce the sky above Nagano Prefecture, Mars Shinshu stands as Japan's highest whisky distillery. The thin mountain air carries the scent of granite and snow melt, while below in the valley, the village of Miyada maintains its quiet rhythm against the dramatic backdrop of alpine peaks.
The distillery's story begins not here, but with Hombo Shuzo's founding in 1872 as a shochu producer in distant Kagoshima. By 1949, the company had secured a whisky license, beginning production in 1960 at their Yamanashi facility using stills designed by Kiichiro Iwai—a name that echoes through Japanese whisky history. But it was the vision of altitude that brought them to this remote mountain perch in 1985.
Here, Central Alps granite acts as nature's filter, sending spring water through millennia of stone before it emerges crystal-clear at the distillery. The steam-heated stills work in harmony with the mountain's own rhythms, where temperature swings between seasons create the slow, contemplative maturation that defines the house character. This is monozukuri applied to whisky—the patient art of making things properly, without haste.
Yet even mountains cannot shelter against market forces. In 1992, as Japan's whisky appetite waned, the stills fell silent. For nineteen years, Mars Shinshu slumbered like a hibernating bear, its warehouses holding their precious cargo in the thin, cold air.
The awakening came in 2011, as the world rediscovered Japanese whisky. The distillery stirred to life again, its equipment blessed by two decades of mountain solitude. Now the steam rises once more from the stillhouse, visible against the alpine backdrop, while barrels rest in warehouses where altitude and patience collaborate on each drop.
Today, Mars Shinshu produces both Mars Maltage and Komagatake expressions, each bearing the signature of high-altitude maturation—that distinctive lightness and delicacy that only thin air and granite-filtered water can provide. The mountain continues its ancient work, measuring time not in quarters or years, but in the slow transformation of spirit into something uniquely Japanese, uniquely itself.
The Mars Shinshu house style
Across 3 expressions, the house leans sweet, light fruit and floral. Dark fruit varies widely from bottling to bottling.
Every bottling has its own flavour fingerprint — open any expression below to see its shape.
Derived from AI-assisted flavour profiles, still being refined.
How it's made
- Founded
- 1985
- Owner
- Hombo Shuzo
- Status
- Active
- Water Source
- Central Alps granite-filtered spring water
- Stills
- 2
- Production Capacity
- 200,000 LPA
Moments that shaped it
- 1872 1872: Hombo Shuzo founded in Kagoshima Prefecture as shochu producer —
- 1949 1949: Hombo Shuzo obtains whisky distillation license —
- 1960 1960: Whisky production begins at Yamanashi facility using stills designed by Kiichiro Iwai —
- 1985 1985: Mars Shinshu distillery established in Miyada, Nagano at 798m elevation - becomes Japan's highest distillery —
- 1992 1992: Production suspended (mothballed) due to declining Japanese whisky market —
- 2011 2011: Distillery reopened as Japanese whisky experiences global renaissance —
- 2016 2016: Mars Tsunuki distillery opens in Kagoshima as complementary warm-climate facility —
- 2020 2020: Komagatake expressions gain international recognition —
4 bottles in the library
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Mars Shinshu Distillery Reserve
NAS 43% ABV
ex-bourbon barrels · ex-sherry casks
-
Mars Shinshu Single Malt
NAS 40% ABV
ex-bourbon barrels
-
Mars Iwai Tradition
NAS 40% ABV
ex-bourbon barrels · ex-sherry casks
-
Mars Shinshu Cask Strength
NAS 55% ABV Non-chill filtered
ex-bourbon barrels · ex-sherry casks
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