小山本家酒造
Koyama Honke Shuzo
A good day. A good sake. A good time.
Saitama
Founded 1808
180m Spring Water
Sai-no-Kagayaki Rice
Award Recognised
6 Group Breweries
Our story
He travelled Japan.
Then he found this water.
Founder Matabee Koyamaya mastered sake brewing in Nada and Fushimi before discovering fine water in Sashiogi, Saitama. In 1808, that discovery became a brewery — and a commitment to quality that continues today.
Saitama terroir
One spring.
One address.
Since 1808.
Saitama’s winter temperature swings support brewing, while pure underground water gives the sake a clean foundation. Koyama Honke brings that place into every bottle with rice-led flavour and poised balance.
Traditional wisdom. Modern precision.
Quality first, always.
Ginjo standards
Purposeful rice polishing and controlled low-temperature fermentation reveal a refined aroma, clarity and elegant balance.
180m spring water
Pure water drawn from deep below the brewery creates a clean foundation, soft texture and poised finish.
Human craft + precision
Skilled makers, laboratory checks and modern production systems work together under a simple principle: quality first.
More than two centuries of saying yes to quality.
“From an everyday table to a special night, there is a Koyama sake for the moment.”
Selected at Sake Ichiban
Why we choose Koyama Honke
Komeichizu Junmai
Junmai / SaitamaFull rice flavour, a mellow body and a clean finish. Versatile with Japanese, Western or Chinese dishes.
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Kinmon Sekaidaka
Junmai Ginjo / 60% RPRA refined ginjo aroma, rich rice flavour and a clean, crisp finish with elegant balance and natural umami.
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Tokyo Zakari
Junmai Ginjo / Yamada NishikiRich umami, a fragrant aroma and a smooth taste, presented in a bottle inspired by the auspicious masu cup.
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Scale in service of craft
Built for consistency. Led by quality.
Discover Koyama Honke at Sake Ichiban
Since 1808. Made in Saitama. Delivered to your door.
