At hacco, water is more than just an ingredient
— it is the origin of life,
the unseen foundation of every flavor we create.
We use pure snowmelt water from Uonuma, Japan,
a region known not only for its pristine nature
but also for its world-renowned rice.
This water is classified as ultra-soft,
with a mineral hardness of just 13 ppm —
making it approximately 89% softer than
most drinking water in the United States.
Soft and subtly sweet, this water is ideal for fermentation
and brewing,
and plays a critical role in bringing out a gentle depth
and richness of flavor that lingers on the palate.
Our partner, Uonuma Ison, visited more than
40 different water sources across Japan before choosing
this remarkable spring. The water is a subterranean
flow from the Echigo Mountains, filtered slowly over
the course of nearly a century through layers of
natural earth.
Through our menu and offerings,
we share this devotion to water
— and to life itself—with every sip and bite.