IWA 5 Assemblage 6 Junmai Daiginjo

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Tasting Notes

Assemblage 6 is defined by precision and linear elegance. The nose unfolds with composed layers of pear and plum, followed by green foliage and gently toasted rice. Subtle notes of nori seaweed and cacao add depth while maintaining freshness.

On the palate, it is slightly drier than Assemblage 5, with a sleek and focused structure. Fruit, floral, and marine nuances integrate seamlessly, while delicate hints of butter brioche and almond dragée emerge with aeration. The finish is long, tactile, and resonant, carrying balance and complexity to the very end.

Specifications

Region: Toyama, Japan
Class: Junmai Daiginjo
Rice: Yamada Nishiki (Hyogo & Toyama), Omachi (Okayama), Gohyakumangoku (Toyama)
Rice Polishing Ratio: 35%
Yeast: Five sake and wine yeast strains
Moto: Predominantly Kimoto
Pasteurization: Single pasteurized
ABV: 15%
Size: 720ml

Overview

Assemblage 6 (2024) marks the elegant conclusion of IWA’s first creative cycle. Drawing from more than twenty individual components, including reserve sake from previous years, it distills years of experimentation into a composition defined by refinement and structural clarity.

Built from three rice varieties across four origins and shaped by five yeast strains, the blend emphasizes integration and balance. Extended bottle maturation of at least 15 months enhances depth and composure before release. As the closing chapter of this initial cycle, Assemblage 6 represents both culmination and transition, refining the signature IWA identity while setting the direction for what follows.

About the Brewery

Shiraiwa K.K.

株式会社白岩

Shiraiwa K.K. produces IWA 5 in Tateyama at the Kengo Kuma-designed Shiraiwa Kura, which opened in 2021. IWA was founded by Richard Geoffroy.

Location

Tateyama, Toyama, Japan

Brewing philosophy

Remain true to Japanese tradition while using assemblage to create harmony across rice varieties, origins, yeasts, fermentation methods and reserve sakes.

SAKEZEN

Brewery Signature

• Assemblage
• Tateyama
• weightless harmony

Aromatic expression

Restrained Lifted

Rice character

Delicate Pronounced

Acidity

Rounded Bright

Harmony through assemblage. Blending distinct sake components brings IWA 5 its layered aromatics, integrated rice character and poised freshness.

SAKEZEN Team View is an editorial interpretation of official producer information, informed by our tasting perspective. Axis positions are qualitative, not laboratory measurements. Individual releases and personal impressions may vary.