ishizuchi shinsei daiginjo is a premium sake produced by ishizuchi shuzo, a renowned brewery located in saijō city, ehime prefecture, japan. this sake is crafted using yamada nishiki rice from hyōgo prefecture, polished to an exceptional 35% of its original size. the brewing process is meticulous, involving handcrafting throughout, fermentation at low temperatures, and the collection of unfiltered daiginjo raw wine using a traditional bag-drip method.