Inside Daiyame’s Path of Innovation

To many, imo shochu evokes an earthy, robust character. Yet, a single pour of Daiyame 25% ABV—crafted by Hamada Syuzou in Ichikikushikino, Kagoshima—instantly introduces notes of fresh lychee. How does a sweet potato spirit yield such a vibrant, fruit-forward profile? The secret rests upon two deliberate choices: the evolution of the raw ingredient and a precise distillation method.
A Method Shared by Fewer Than One Percent
The foundation of Daiyame’s profile relies on low-temperature vacuum distillation, a technique embraced by fewer than one percent of imo shochu makers. While traditional atmospheric distillation coaxes out a rich, earthy sweet potato character, vacuum distillation operates under reduced pressure. This lowers the boiling point, preserving the delicate, heat-sensitive volatile compounds. The result is a clean, vibrant spirit rich with the nuances of lychee and Muscat grapes.
The Craft of “Aroma-Ripened” Sweet Potatoes
Complementing this distillation process is the raw ingredient itself: Kojuku-imo, or aroma-ripened sweet potatoes, developed uniquely by Hamada Syuzou. Through a precise aging process, these sweet potatoes develop a high concentration of monoterpene alcohols (MTAs)—the organic compounds responsible for the distinct fragrances of lychee, Muscat grapes, and elderflower. It is a profile reminiscent of an aromatic Alsatian white wine, introducing a completely new vocabulary to the traditional world of imo shochu.
This delicate transformation relies not on automation, but on the intuition of human senses. During the harvest season, vast quantities of sweet potatoes arrive daily, and artisans evaluate the maturation stage strictly by scent. To maintain sensory acuity, they deliberately pause to reset their olfactory senses throughout the day. The distinctive character of Daiyame is born from this quiet, meticulous devotion.
Global Recognition at the Highest Level
This innovative approach to aroma has earned profound acclaim on the international stage. In 2019, Daiyame 25% ABV received the prestigious Trophy in the shochu category at the International Wine & Spirit Competition (IWSC), the highest possible distinction awarded to just one exceptional entry at the pinnacle of the category. This was followed by a Double Gold at the International Spirits Challenge (ISC) in 2020. Evaluated alongside the world’s finest gins and whiskies, this authentic spirit secured its place among the global elite.
The Spirit of “Dareyame”
The name Daiyame is rooted in the Kagoshima dialect, drawing from the traditional concept of dareyame—the evening ritual of washing away the day’s fatigue and refreshing the spirit for tomorrow. Within this single word lies the brewery’s desire to share a timeless cultural philosophy across generations and borders.
Launched in September 2018 to commemorate Hamada Syuzou’s 150th anniversary, Daiyame is crafted at Denzouin Kura, a facility dedicated entirely to innovation. Founded in 1868, the brewery balances its rich heritage with forward-thinking practices. Denzouin Kura was the first shochu distillery in Kagoshima to earn the FSSC 22000 food safety certification. It embodies sustainable modernity by repurposing distillation by-products into biogas energy and optimizing production efficiency. While grounded in a century and a half of history, the craft remains progressive.
To the Tables of Bangkok
At the intersection of a rare distillation technique, the evolution of aroma-ripened sweet potatoes, and peak international acclaim stands Daiyame 25% ABV.
The scent of lychee carries a deep familiarity within Southeast Asia. In Bangkok’s evolving gastronomy scene, a growing appreciation for aroma-driven spirits creates a perfect canvas for this expression. How will this subtle surprise—the essence of lychee emerging from sweet potato—be received among the city’s discerning tables? Entrusted with a century and a half of history, the spirit of dareyame quietly extends its reach, offering a moment of mindful pause to a new world.(Mr. Bacchus)
This article is intended solely to explore the distillation techniques and cultural heritage of Hamada Shuzo and the DAIYAME brand, as reflected in the IWSC and ISC award records, and is not intended to promote or encourage the consumption of alcohol. / บทความนี้จัดทำขึ้นเพื่อนำเสนอข้อมูลเกี่ยวกับเทคนิคการกลั่นและมรดกทางวัฒนธรรมของ Hamada Shuzo และแบรนด์ DAIYAME ที่สะท้อนในผลรางวัล IWSC และ ISC เท่านั้น มิได้มีเจตนาเพื่อส่งเสริมหรือโฆษณาเครื่องดื่มแอลกอฮอล์ สำหรับผู้มีอายุ 20 ปีขึ้นไป โปรดดื่มอย่างรับผิดชอบ