Ishikawamon Hiire (720 ml)

Yoshidagura U operates in Kanazawa, Ishikawa Prefecture, where the Japan Sea maritime climate and mineral-rich groundwater define the regional sake character. This expression uses Ishikawamon rice, a local variety selected for its brewing properties and connection to place.

The production employs hiire (heat treatment) — a deliberate pasteurization step applied post-fermentation to stabilize the sake and extend shelf life without refrigeration. This technique, historically essential before modern cold storage, imparts subtle structural changes: it arrests enzyme activity and rounds the profile, distinguishing hiire-treated sake from nama (unpasteurized) counterparts.

Hiire sake occupies a functional middle ground in Japanese brewing: less volatile than nama, more aromatic than fully aged koshu. The heat treatment preserves the rice's subtle mineral backbone while softening any sharp fermentation edges, making the expression approachable without sacrificing depth.

Drinking window: best consumed within 1–2 years of release to capture the balance between stability and fresh character that hiire imparts.