廣木酒造本店Hiroki Shuzo Honten

In 1996, Kenji Hiroki was 27 and brewing sake with his mother, the two of them and almost no one else. He had come back to the family brewery in Aizubange three years earlier to find it barely solvent. The old toji had retired by then, and the year after Kenji started, his father, the eighth-generation head, died suddenly at 58. The brewery had stood in the western Aizu basin since 1830, sake country since the Edo period. Kenji, now the ninth generation, was left with a 200-year-old building, a skeleton crew, and the open question of whether to close it.

He kept going, but the first sake he sent to a jizake specialist in Tokyo came back with a blunt verdict: hopeless. The retailer had seen an NHK report about the struggling brewery and reached out to help. He was not going to soften the feedback. If Kenji wanted repeat customers, this sake wasn't it.

Kenji spent a year taking the criticism apart. He was not going to imitate the lighter Niigata style that had dominated national taste for a decade. What he could do was make the most honest expression of the sake he could actually produce, from Aizu, with the Gohyakumangoku rice grown nearby in Aizubange and Kitakata. In 1999, he sent the Tokyo retailer an unfiltered, unpasteurized, undiluted raw sake: muroka nama genshu. No processing, no cutting, bottled straight from pressing and shipped. The retailer took it. It sold out. Then it sold out again.

Hiroki was not the first muroka nama genshu on the market, but few breweries had treated it as their primary register rather than a novelty. The style matched what Kenji was after: vivid umami, concentrated flavor, the Aizu rice coming through without anything to soften or disguise it. Within a few years it was on permanent back-order.

The brewery produces each batch from 1.25 tons of rice. Yamada Nishiki goes exclusively into the koji; the regular brews use locally grown Gohyakumangoku. The original muroka nama style is still distributed only in 1.8-liter bottles, the format Kenji chose at the start. Decades on, the sake remains what its name means.

Key facts

• Founded mid-Edo period (circa 1830) in Aizubange, western Aizu Basin, Fukushima Prefecture
• Kenji Hiroki began brewing in 1996 at age 27, working alongside his mother after the toji retired; his father (8th generation) died suddenly in 1997 at age 58, making Kenji the 9th generation
• First Hiroki brand release: 1999, muroka nama genshu (unfiltered, unpasteurized, undiluted)
• Style pivot driven by harsh feedback from a Tokyo jizake retailer who had seen an NHK broadcast about the brewery
• Core rice: Yamada Nishiki for koji; Gohyakumangoku (local Aizubange/Kitakata) for main fermentation
• Fixed batch size: 1.25 tons of rice per brew
• Original muroka nama style shipped in 1.8L bottles only
• SAKE COMPETITION 1st place (pure sake, 2012); 1st place junmai ginjo 2019; repeated top-10 finishes