EST. 1831
御慶事
Since 1831 — 古河市, Ibaraki
A small Koga family brewery led by its eighth-generation daughter, its name meaning simply 'the greatest joy.'
Founded in 1831 in Koga, Ibaraki, this family-run brewery makes Gokeiji ("the greatest joy"). Its sake has collected a string of international awards, including IWC trophies in 2016 and 2022 and a SAKE Competition 2025 committee chair's prize. Eighth-generation successor Chisa Aoki, 27, now leads the small operation, which since 2022 has also produced a premium line pressed by gravity alone — a method called muatsu-shibori.
Junmai Ginjo — Ibaraki-grown Hitachi Nishiki rice; IWC 2016 Sake trophy winner
Junmai Daiginjo — gravity-pressed (muatsu-shibori) method, produced since 2022
Daiginjo — IWC 2022 Ibaraki trophy winner
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Source: https://aokishuzou.co.jp/