WhistlePig The Boss Hog Edition 六 – The Samurai Scientist Katakana Edition

The Katakana Edition of WhistlePig's Boss Hog VI — the same Japanese Umeshu cask finish and koji fermentation as the standard Samurai Scientist, in a bottle featuring Japanese katakana script.

Boss Hog VI: The Samurai Scientist is the sixth edition of WhistlePig's annual flagship series — single barrel, bottled at proof, with a unique finishing cask chosen for that edition. The Samurai Scientist is the first American whiskey ever finished using Japanese Umeshu (plum wine) casks, the result of a collaboration between WhistlePig and the Kitaya brewery on Japan's Kyushu island. The production also introduced koji fermentation to the blend — an ancient Japanese technique pioneered in American distilling by Jokichi Takamine, whose portrait appears on the bottle.

The Katakana Edition is a variant of the same release featuring Japanese katakana script on the bottle — a collector's variant produced for a specific market segment and significantly rarer than the standard edition.

Tasting Notes

• Appearance: Deep amber with warm mahogany tones.
• Aroma: Ripe plum, warm rye spice, delicate floral notes, and a subtle umami undertone from the koji influence.
• Palate: Bold rye grain character meeting plum fruit and a layered savory depth that no other rye whiskey delivers.
• Finish: Long and evolving — warm spice, dried plum, and lingering Japanese oak character.

Specs

• Distillery: WhistlePig Farm, Shoreham, Vermont
• Style: Straight Rye Whiskey
• Finish: Japanese Umeshu casks, Kitaya Brewery, Kyushu, Japan
• Bottling: Single barrel, bottled at proof (120–122)
• Size: 750ml
• Variant: Katakana Edition (Japanese script label)

Explore the full WhistlePig collection or browse all rye whiskey at Wooden Cork.

Frequently Asked Questions

• What is the difference between the Katakana Edition and the standard Samurai Scientist? The liquid is the same — both are single barrel, bottled at proof, Japanese Umeshu cask finish. The Katakana Edition features Japanese katakana script on the bottle rather than the standard Roman alphabet label. It was produced for a specific collector market and is rarer than the standard release.
• What is Umeshu and how does it affect the whiskey? Umeshu is a traditional Japanese liqueur made by steeping ume plums in shochu or sake with sugar. The residual plum fruit, sweetness, and subtle acidity in the casks impart ripe plum notes and a delicate floral character with no parallel in Western cask finishing traditions.
• Who was Jokichi Takamine? Jokichi Takamine (1854–1922) was a Japanese-American chemist who pioneered koji fermentation in American whiskey production. Boss Hog VI honors his legacy by reviving that technique in a collaboration with a Japanese brewery built on koji tradition.
• Is the Boss Hog VI Katakana Edition a limited release? Yes — single barrel by definition, and the Katakana variant adds an additional layer of scarcity. This will not be restocked.