“This special Honjōzō nama genshu, Isojiman, is made from sake-brewing rice—top-tier Yamada Nishiki grown in the Special A District. The rice is highly polished, and fermentation takes place slowly at low temperatures in a refrigerated ginjo brew room, using the famed soft water drawn from the Oigawa underground stream that originates from Mount Ainodake in the Southern Alps. Using proprietary koji-making techniques refined over many years and house-cultured yeast, this handcrafted sake yields a fresh, round flavor and a crisp ginjo aroma in the freshly pressed undiluted form. Please enjoy it chilled to savor its seasonal character.”
Excerpt from the label (translated).