Ikawa Distillery and Juzan: Whisky Made with the Southern Alps’ Living Water
The drive took four hours. Four hours up into the Southern Alps, past dam after dam, through switchbacks that felt increasingly like a different country. My guide — Hirai-san, whose business card listed “Visiting Professor, Shizuoka University” — talked about the mountain the entire way. The red rock formations. The geological collisions that built these peaks. The wildflowers on the sheer slopes. By the time we arrived, my original question had already changed itself.
I’d started the journey thinking: why would anyone build a whisky distillery in a place this remote? I arrived knowing: because this mountain, this water, and this particular silence cannot be found anywhere else.
The Company That Couldn’t Answer a Question for Fifty Years
The distillery is operated by Juzan, a company whose roots are in forestry, with a parent company involved in hydroelectric power and paper manufacturing. They hold vast private landholdings in the Southern Alps — mountains that include several peaks above 3,000 meters. For half a century, the question of how to sustainably use and protect this land had no satisfying answer. Selling the water was tried. It didn’t communicate the value. The land was extraordinary, but ordinary products couldn’t carry its story.
The answer, eventually, was whisky.
Three Elements That Could Only Come From Here
Once the decision was made, everything converged. The production water comes directly from the headwaters of the Oi River — one of the purest sources in Japan, so clean it requires only ultraviolet treatment to meet health standards. No mineral adjustment, no filtration. This is the same water that once fed wasabi fields: wasabi, which cannot survive in anything but pristine conditions.
The barrels are made from Mizunara oak harvested from the distillery’s own forests. Mizunara is exceptionally rare in whisky production worldwide — it sinks in water and couldn’t be floated downstream during the logging era, so it was left standing while other timber was harvested. The result is that Juzan’s forests contain old-growth Mizunara that no other distillery can access.
The distillery sits at approximately 1,200 meters elevation. Clouds from the west break against these mountains, making the environment cool, wet, and highly unusual as a maturation site. The whisky ages slowly and distinctively.
Water as the Central Story
Hirai-san spoke throughout the drive about the dams we passed — most built 70 to 80 years ago during Japan’s postwar infrastructure boom, all of them gradually filling with sediment, none of them permanent. His point was not pessimistic but honest: the water we take for granted travels through forests centuries in the making, stored by infrastructure that will eventually reach its limit. A whisky that makes you think about where its water comes from is, in his view, a whisky that does something useful in the world.
Mika’s Perspective
I have visited many distilleries in Japan and abroad. Ikawa left me with something I am still turning over: the idea that a single glass of whisky can be a complete summary of a landscape — its geology, its hydrology, its forestry history, and the people who have spent decades trying to understand how to live responsibly within it. The whisky itself carries all of that. When I share it at the bar, I want to give guests a sense of the four-hour journey that made it possible. That mountain deserves to be known.
Read the original Japanese column: little-happiness.jp/columns/ikawa-distillery/
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