Japan's Nishiyama Distillery has announced TAN’IN MUKAI (丹陰霧海), its first Japanese single malt whisky, scheduled for a worldwide launch in March 2027. Produced in the mist-covered hills of Tanba, Hyogo Prefecture, the release brings together more than 175 years of Japanese brewing heritage, distinctive local maturation conditions and an unusual finishing process using the distillery's own pomace brandy casks.
Established in 1849, Nishiyama is best known for its traditional sake production, but its experience also extends to brandy and other distilled spirits. TAN’IN MUKAI represents a significant development for the family-owned producer, bringing generations of fermentation knowledge into the increasingly competitive Japanese single malt whisky category.
One of the release's most interesting features is its maturation programme. Nishiyama uses three different storage environments, including a former schoolhouse in a mountain valley, while finishing the whisky in casks previously used for its own grape-pomace brandy.
With priority registration already open ahead of the March 2027 launch, TAN’IN MUKAI is an intriguing upcoming release for enthusiasts of Japanese whisky, unusual cask maturation and emerging distilleries.
TAN’IN MUKAI Japanese Single Malt – Key Details
|
Specification |
Details |
|---|---|
|
Whisky |
TAN’IN MUKAI (丹陰霧海) |
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Producer |
Nishiyama Distillery / Nishiyama Shuzojyo |
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Country |
Japan |
|
Location |
Tanba, Hyogo Prefecture |
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Category |
Japanese Single Malt Whisky |
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Worldwide Launch |
March 2027 |
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Producer Established |
1849 |
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Maturation |
Three distinct maturation locations |
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Special Cask Treatment |
Nishiyama pomace brandy cask finish |
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ABV |
To be confirmed |
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Age Statement |
To be confirmed |
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Bottle Size |
To be confirmed |
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Number of Bottles |
To be confirmed |
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UK Retail Price |
To be confirmed |
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Availability |
Priority registration open |
The distillery has announced the release month, production concept and maturation approach, but has not yet published the final bottling strength, age statement, edition size or retail price.
What Is TAN’IN MUKAI Japanese Whisky?
TAN’IN MUKAI is the inaugural Japanese single malt whisky from Nishiyama Distillery, a producer with roots stretching back to the mid-nineteenth century.
The name is written using the Japanese characters 丹陰霧海 and is inspired by the mist-covered landscape surrounding the distillery in Tanba.
Nishiyama has introduced the whisky under the evocative expression Born in the mist. Aged in silence., reflecting the importance of the local climate, landscape and time spent in maturation.
Rather than presenting the whisky solely through its age or cask type, the distillery has built the release around three elements: Tanba's natural environment, traditional Japanese fermentation expertise and the use of locally produced brandy casks.
This approach gives TAN’IN MUKAI a distinctive identity within the Japanese single malt category, particularly as Nishiyama's history has been centred on sake production rather than whisky.
The inaugural release will provide an opportunity to discover how that brewing experience translates into matured malt spirit.
Nishiyama Distillery – More Than 175 Years of Japanese Brewing
Nishiyama's history dates to 1849, when the business began producing sake in the Tanba region of Hyogo Prefecture.
Over successive generations, the producer developed its understanding of rice fermentation, water quality, yeast and temperature control.
These elements remain central to Japanese sake production, where subtle differences during fermentation can significantly influence aroma, texture and flavour.
The distillery's historic brewery buildings have also received recognition as Registered Tangible Cultural Properties of Japan, reflecting their architectural and cultural importance.
For TAN’IN MUKAI, Nishiyama is applying this accumulated knowledge to malt whisky production.
Although whisky and sake use different ingredients and production methods, both depend heavily on fermentation.
The distillery believes that its longstanding experience with microorganisms and fermentation management can contribute to the character of its whisky before distillation and maturation even begin.
This connection between traditional sake brewing and modern whisky production is one of the most compelling aspects of the forthcoming release.
The Meaning Behind TAN’IN MUKAI – A Whisky Inspired by Mist
The name TAN’IN MUKAI has a particularly interesting cultural origin.
It is connected to a friendship between Japanese painter Ippo Ogawa and Hakuun Nishiyama, the third-generation brewer associated with the Nishiyama family business.
Ogawa, whose artistic career extended from the Meiji period into the Showa era, was inspired by the atmospheric landscapes of Tanba.
Looking across the mist-covered hills, he used the characters 丹陰霧海 to evoke the appearance of shadowed mountains disappearing into a sea of fog.
This imagery has become the foundation of the whisky's identity.
For Nishiyama, the mist represents more than an attractive landscape. It reflects the relationship between the local environment and the patient process of creating and maturing spirits.
The distillery also emphasises the Japanese concept of en, referring to connections or bonds between people.
Through TAN’IN MUKAI, Nishiyama hopes to connect its history, the craftspeople responsible for production and whisky drinkers around the world.
The result is a release with an unusually strong connection to Japanese artistic and cultural history.
Three Maturation Locations – The Influence of Tanba's Climate
One of the defining features of TAN’IN MUKAI is Nishiyama's use of three distinct maturation environments.
Tanba experiences considerable changes in temperature between day and night, contributing to the dense fog for which the region is known.
These temperature variations also influence how spirit interacts with oak during maturation.
As temperatures rise, whisky and wood expand and interact; as temperatures fall, the rate of that interaction changes. Over time, these conditions can contribute to the development of flavour, colour and texture.
Nishiyama has identified three storage locations for its whisky:
1. The Historic Sake Brewery Warehouse
The first maturation environment is associated with Nishiyama's original sake production facilities.
These traditional brewery buildings connect the whisky directly with the producer's long history of fermentation and Japanese brewing.
2. The Hillside Brandy Cellar
The second location is a brandy warehouse positioned on a hillside.
This setting provides a different maturation environment and reflects Nishiyama's experience beyond sake production.
3. A Former Wooden Schoolhouse
Perhaps the most unusual location is a decommissioned wooden schoolhouse situated in a mountain valley.
The building offers a distinctive setting for whisky maturation, with its location and construction providing different temperature and humidity conditions from the other warehouses.
Nishiyama describes the three environments as contributing individual characteristics to its maturing spirit.
Although the final cask proportions have not been announced, this approach is an interesting part of the production story and could help distinguish TAN’IN MUKAI from more conventional Japanese single malts.
Award Recognition Before the First Whisky Release
Although TAN’IN MUKAI has not yet reached the market, Nishiyama has already received recognition for its distilling work.
At the Tokyo Whisky & Spirits Competition 2026, the producer reported awards in two categories:
|
Spirit |
Recognition |
|---|---|
|
Nishiyama Aged Brandy |
Best in Class |
|
Nishiyama Whisky New Born |
Gold |
These awards are particularly relevant because they recognise the two aspects of production being brought together in TAN’IN MUKAI.
The award for aged brandy supports the producer's experience working with the spirit whose casks are used in finishing.
The Gold award for Whisky New Born recognises its young whisky spirit before the launch of the finished single malt.
However, these awards should not be confused with independent reviews of TAN’IN MUKAI itself, which has not yet been commercially released.
The completed whisky will need to be assessed separately once bottles become available.
TAN’IN MUKAI Japanese Single Malt Tasting Notes
Official tasting notes for the finished March 2027 release have not yet been published.
Nishiyama has identified the influence of its pomace brandy casks as an important part of the whisky's intended flavour profile, particularly in relation to sweetness and floral characteristics.
The three maturation environments are also expected by the producer to contribute complexity.
However, without a confirmed official tasting profile or access to the finished whisky, it would be premature to describe the exact nose, palate and finish.
Nose: To be confirmed following the official release.
Palate: To be confirmed. Nishiyama highlights sweetness and floral complexity associated with its pomace brandy cask finish.
Finish: To be confirmed following publication of the producer's tasting notes.
Further information is expected as the March 2027 launch approaches.
When Will TAN’IN MUKAI Japanese Whisky Be Released?
Nishiyama Distillery has confirmed that TAN’IN MUKAI will receive its worldwide launch in March 2027.
The producer announced the project publicly on 8 August 2026, introducing the whisky's name, concept and production story.
A priority registration programme is already open through the distillery's official website.
Registration provides access to release updates, tasting event invitations and priority purchasing information.
However, joining the list should not be interpreted as securing a confirmed bottle allocation.
The distillery has not yet publicly announced the final bottle count, suggested retail price, ABV or detailed UK distribution arrangements.
Consequently, availability through Hard To Find Whisky has not yet been confirmed.