Tsunan Sake Brewery Co., Ltd. (Headquarters: Tsunan Town, Nakauonuma District, Niigata Prefecture; Representative Director: Kengo Suzuki; hereinafter referred to as “Tsunan Sake Brewery”) has implemented an AI-based sake sensory evaluation system developed by Nomura Office Inc. to conduct objective evaluations of its sake lineup, including “GO GRANDCLASS Uonuma Koshihikari Edition.” The results highlighted the unique characteristics of the “GO GRANDCLASS Uonuma Koshihikari Edition,” which features a high level of freshness and a subdued bitterness compared to other sake produced by Tsunan Sake Brewery.
Background
The sake sensory evaluation system used by Tsunan Sake Brewery was developed by Singapore-based ProfilePrint and introduced in Japan with the support of Nomura Jimusho Inc. This system quantifies sensory attributes of food products, combining patented scanning technology with AI learning functions to replicate human sensory evaluations with a high degree of accuracy. For sake evaluations, the system has successfully produced results comparable to those of professional sake tasters (Kikisake-shi).
About “GO GRANDCLASS Uonuma Koshihikari Edition”
“GO GRANDCLASS Uonuma Koshihikari Edition” is a premium sake that embodies the rich natural environment and traditional craftsmanship of Tsunan Town, Niigata Prefecture. It is crafted with locally grown, high-quality Uonuma Koshihikari rice and brewed using natural water sourced from springs at an altitude of 2,000 meters in the surrounding mountains.
This sake is distinguished by its elegant aroma and a smooth, profound flavor, representing a bold step toward redefining the potential of sake. In 2024, it was awarded a Gold Medal in the Junmai Daiginjo category at the Kura Master Sake Competition, further affirming its exceptional quality on an international stage. The sleek bottle design reflects Tsunan Sake Brewery’s philosophy of “brewing a future in harmony with nature,” making it a popular choice for special occasions and in global markets.
For more information: GO GRANDCLASS Uonuma Koshihikari Edition
Future Outlook
The results of this evaluation enable Tsunan Sake Brewery to present an objective explanation of the taste profile of “GO GRANDCLASS Uonuma Koshihikari Edition” in domestic and international markets. This sake has already gained recognition, earning a Gold Medal at the Kura Master competition in France and receiving high praise at tasting events in Singapore and Taiwan. Tsunan Sake Brewery plans to use these evaluation results to further strengthen its global expansion efforts.
About Tsunan Sake Brewery
Tsunan Sake Brewery is located in Akinari, Tsunan Town, Nakauonuma District, Niigata Prefecture. The area is known for its heavy snowfall, and the brewery uses natural spring water sourced from the nearby 2,000-meter-high mountains. The sake is crafted using locally grown “Gohyaku Mangoku” and “Uonuma Koshihikari” rice, with a focus on sustainable brewing that coexists with nature. The brand concept, “Brew for Future – Brewing for a Sustainable Future,” reflects this commitment. Under a new leadership structure since 2023, Tsunan Sake Brewery aims to create new value through the fusion of traditional sake brewing and science, with a focus on expanding its presence in international markets.
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