The production of Azumatsuru Yamadanishiki Junmai Daiginjo Sake involves several meticulously executed steps that ensure top-quality results. It begins with the selection of premium Yamadanishiki rice, which is then polished to remove the bran and obtain the starchy core. After polishing, the rice is rinsed and soaked in water, allowing it to absorb moisture before steaming. Steaming is done carefully to achieve the ideal texture, which facilitates fermentation.
Once prepared, the rice is combined with koji mold, which is crucial for converting starches into sugars. This mixture is allowed to incubate, leading to the development of koji rice. Subsequently, the koji is blended with yeast, steamed rice, and water in a fermentation tank. This mash undergoes fermentation for several weeks, during which yeast produces alcohol and carbon dioxide.
After fermentation, the sake is pressed to separate the liquid from the solid remains. The resulting sake is then clarified, filtered, and pasteurized, ensuring its stability and cleanliness without sacrificing flavor. The final step involves bottling, where meticulous care is taken to retain the sake's delicate flavors and aromas. The whole process reflects the dedication to craftsmanship and tradition that characterizes Azumatsuru's approach to sake brewing.