Follow the relationships among the seven through sound

The English-language podcast moves between the seven expressions to explore their differences. The article organizes those relationships into three threads (the transformation of raw materials, time in maturation and the character retained at bottling) and examines them through the six perspectives below.

Six perspectives for reading character

Sake lees: an endpoint that becomes another beginning

Seen as what remains after pressing, sake lees mark the end of sake production. Viewed as a raw material for distillation, however, sake lees hold alcohol and aroma that become the starting point of the next spirit. The material is the same; its role changes with the stage of production from which we view it.

SHICHIKEN Alain Ducasse Sustainable Spirit begins by taking sake lees as the raw material for the next spirit. Lees produced in sake making are distilled, and the resulting spirit is then matured for three years in Hakushu whisky casks. Behind the freshness of its ginjo aroma and the roundness of cask maturation lies the idea of putting the lees to work again as raw material for the next spirit.

HAKKAISAN's Yoroshiku Senman Arubeshi also shows the potential of sake lees in a different form. Fresh sake lees are distilled slowly under reduced pressure and stored for at least three years, giving a flavor reminiscent of sake and a rounded smoothness. What connects the two is more than the fact that a by-product was used: both reconnect aromas born in sake production to the character of a distilled spirit.

Within “rice-based,” distinct ways of making a spirit

Rice does not turn directly into alcohol. Koji is grain, such as rice, cultivated with koji mold. Its enzymes convert starch to sugars; yeast uses those sugars to produce alcohol and aroma compounds. Koji and yeast perform different roles, and the resulting fermented mash proceeds to distillation. Several transformations already sit inside the simple term “rice-based.”

The difference becomes concrete in HAKKAISAN's Yoroshiku Senman Arubeshi and Fubaika. The former starts with sake lees. The latter uses rice, rice koji and sake lees in a three-stage yellow-koji mash, with ingredients added in three stages. Both come from the same brewery, are bottled at 40%, and use reduced-pressure distillation, but their paths to the still differ. Fubaika's lees-derived ginjo aroma and the aroma of oak maturation connect the stages before and after distillation within a single spirit.

For SG SHOCHU Kome, white koji, low-temperature fermentation and reduced-pressure distillation are central. Apple, pineapple and lemon peel describe aromas in a rice-based spirit, not fruit ingredients. Including this bottle lets us consider fruit-like aroma through fermentation and distillation instead of tying it to the work of the cask alone.

Years of maturation are not a direct measure of change

During cask maturation, compounds pass from wood into spirit, changing aroma and color. Maturation also encompasses changes in the spirit's own aroma and flavor over time. Adding the aroma of wood and changing the aroma and flavor of the whole spirit overlap, but they are not the same thing.

ROKUCHOSHI Red 13 years old matures rice shochu distilled at atmospheric pressure in oak casks, while OKUKUMA stores honkaku rice shochu in sherry casks for seven years. Comparing thirteen years with seven shows the difference in years. But it is not a comparison of the same spirit midway through maturation and after completion. Both the spirits that went into the casks and the casks as labeled differ. A long time is one kind of value, but years alone do not determine depth of flavor.

Atmospheric distillation and reduced-pressure distillation, which is carried out at a lower temperature by lowering the pressure, are also differences that lie before the cask. ROKUCHOSHI moves from atmospheric distillation into oak casks; Fubaika moves from a three-stage yellow-koji mash and reduced-pressure distillation into oak casks. To understand maturation, we need to look not only at the length of time but at how the spirit that spent that time was made.

A single cask changes the unit for reading character

Combining mature spirits from several casks can bring different aromas and flavors into a coherent whole. Bottling from one cask retains the differences between individual casks. Blending and single-cask bottling locate character in different places: the assembled whole, or the particular cask.

GOKUJYO TSUTSUMI is bottled from one cask of long-matured shochu spirit. Differences in color, aroma and flavor between casks become part of understanding each bottling. “Single cask” refers to a bottling made only from the spirit of one cask.

Beyond amber: understanding the label category

OKUKUMA begins with honkaku rice shochu matured in sherry casks. Its cask-derived color exceeds the color standard for honkaku shochu, so dietary fiber is added and it is bottled as a liqueur. This production sequence connects the rice-shochu base with the category on the bottle.

GOKUJYO TSUTSUMI's liqueur designation is also connected to the color restrictions for honkaku shochu. Grouping the two solely as liqueurs can obscure the fact that they are built on cask-matured, rice-based shochu spirit. Category matters, but ingredients and maturation complete the picture.

The character of the seven

アラン・デュカス サステナブル・スピリッツ

SHICHIKEN Alain Ducasse Sustainable Spirit

A spirit that turns sake lees into its raw material and matures in Hakushu whisky casks. It combines the freshness of ginjo aroma with the roundness of cask maturation. The background of reusing lees is linked to how sake-derived aroma continues into a distilled spirit.

37% / 720ml

Product information

八海山本格粕取り焼酎 宜有千萬

HAKKAISAN Kasu-tori Shochu Yoroshiku Senman Arubeshi

A sake-like flavor and the roundness that comes from at least three years of storage are central. The slow reduced-pressure distillation of fresh sake lees offers a way to see lees not as a mere remainder but as an aromatic raw material. Its full, rounded aroma and flavor let one grasp the link between sake and distilled spirits.

40% / 720ml

Product information

八海山本格米焼酎 オーク樽貯蔵 風媒花

HAKKAISAN Fubaika Rice Shochu aged in Oak Barrel

Lees-derived ginjo aroma coexists with the fragrant aroma of oak maturation. A three-stage yellow-koji mash of rice, rice koji and sake lees moves on to reduced-pressure distillation and cask storage; sake-brewing technique and maturation in wood form one continuous line. Its distinguishing feature lies not only in the aroma of the cask, but in its relationship with the aromas that come from fermentation.

40% / 720ml

Product information

六調子 赤 13年

ROKUCHOSHI Red 13 years old Japanese Rice whisky Single distilled

Rice shochu distilled at atmospheric pressure is matured for thirteen years in oak casks, and has a warm, settled outline of aroma and flavor. The route from atmospheric distillation to long cask storage, together with the 28% strength at bottling, is this bottle's concrete profile. Behind the conspicuous feature of long maturation lies a combination of distillation method and cask storage.

28% / 720ml

Product information

奥球磨 7年 シェリーカスク

OKUKUMA Sherry Cask Japanese

Rounded rice sweetness, rich cask aroma and a deep amber color characterize this expression. Traits that come from seven years of storage in sherry casks connect not only to its aroma and flavor but also to its designation as a liqueur. Tracing it from its honkaku rice shochu base to bottling reveals a character that the category name alone does not convey.

40% / 500ml

Product information

極上 堤

GOKUJYO TSUTSUMI

Its features are a rich aroma, a deep, full flavor and single-cask bottling that preserves differences between casks. Rather than assembling several casks into one flavor, it treats spirit matured in a single cask as the product. Within the shared theme of maturation, it directs attention to the individual cask.

40% / 720ml

Product information

SG SHOCHU Kome

SG SHOCHU Kome

Aromas reminiscent of apple, pineapple and lemon peel accompany a light, smooth profile and crisp finish. Made from rice through white-koji fermentation at low temperature and reduced-pressure distillation, it plays the role, among the seven, of directing attention to the aroma and texture shaped by fermentation and distillation.

40% / 750ml

Product information

The product illustrations are original artworks based on images published by the producers. Label details have been simplified and the illustrations do not represent current packaging or bottle color.

Behind the counter: explain each feature together with its reason

Placing two bottles beside one question can be clearer than explaining all seven at once. Establish what they share, then describe where production diverges. Such comparisons aid understanding; they are not controlled experiments that isolate the effect of a single production step.