Every batch in the Ki One series is a document of the distillery's evolution — a deliberate, serial exploration of what happens when Korea's most extreme seasonal climate interacts with a specific cask type over time. Batch 1 used virgin American oak. Batches 2 and 3 explored Oloroso Sherry hogsheads. Batch 4 went into peated and smoked territory. Batch 5 tried port casks. Each one a different question asked of the same base spirit, the same Forsyths copper pot stills, the same 100% unpeated malted barley distilled in Namyangju.

Batch 7 is a milestone. For the first time since the distillery's founding in 2020, Ki One has matured its whisky exclusively in first-fill ex-bourbon casks — barrels that previously held American bourbon and have never been used for any other purpose, whose interiors still carry the full complement of bourbon-soaked, vanilla-and-caramel-impregnated wood that first-fill cooperage delivers at its most generous. This is the most specifically American-oak-classic and the most specifically bourbon-adjacent Ki One has ever produced — and it is also, at 56.9% ABV, the series' most assertively cask-strength expression, bottled without dilution directly from barrels that the Korean peninsula's hot summers and icy winters have been working on with the 2.5x accelerated maturation rate that gives Ki One its most distinctive production advantage over every European and American competitor.

The distillery's own description is direct: fresh aromas of summer fruits, balanced by rich, deep spice notes. For context, the Eagle Edition — Ki One's existing American oak and ex-bourbon expression — carries confirmed tasting notes of "robust malt, maple syrup, vanilla, and warm banana with a long, oak-spiced finish." At first-fill rather than multi-use cooperage, and at full cask strength rather than the Eagle's standard 43% ABV, Batch 7 delivers all of that character at its most concentrated and its most specifically bourbon-barrel-forward intensity. Korea's seasonal cycling does to a first-fill ex-bourbon barrel what no temperate climate distillery can replicate in the same timeframe — forcing the spirit deep into the sweetest, most vanilla-saturated wood multiple times across each year, producing a whisky of vivid fruit and deep spice character that arrives with the confidence of something considerably older than its years.

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Origins & Craftsmanship

Ki One Distillery — founded in 2020 as Three Societies in Namyangju, Gyeonggi Province, South Korea — is the first craft single malt whisky distillery in Korean history. Founder Bryan Do, a Korean-American former Microsoft executive turned craft beer entrepreneur, partnered with Andrew Shand, a Scottish master distiller with experience at The Glenlivet, Nikka, and Speyside Distillery, to build an operation that deliberately draws on three national identities — Korean, American, and Scottish — for its philosophy, its production approach, and its product range.

The distillery uses two copper pot stills supplied by Forsyths of Rothes — the same Speyside cooperage responsible for stills at virtually every serious Scottish distillery. Fermentation runs a minimum of five days in stainless steel tanks. All Ki One whisky is distilled from 100% unpeated malted barley, double-distilled, and matured without artificial coloring or chill filtration. The most significant production advantage Ki One holds is geographical and seasonal: Namyangju's extreme four-season climate delivers hot, humid summers and genuinely icy winters, creating a temperature cycling that the distillery estimates accelerates maturation at 2.5 times the rate of Scotland. The cask expands deeply in summer heat, drawing spirit into the wood; contracts in winter cold, pushing it back out transformed. The result is whisky that achieves in years what cooler climates produce over decades.

The Batch Series is Ki One's most exploratory and most specifically experimental line — each release a deliberate commitment to a single maturation approach, asking what that specific cask type produces when filtered through the Korean climate and the Ki One house spirit character. Batch 7 is the first in the series to use exclusively first-fill ex-bourbon casks — barrels that held American bourbon in their first life and have never since been used for any other spirit, retaining the maximum possible complement of bourbon-derived wood sugars, vanilla compounds, and caramel character available from American white oak cooperage. Bottled at 56.9% ABV / 113.8 proof — natural cask strength, no dilution, no filtration, no coloring — with a fresh new look in the packaging that accompanies this latest chapter in the Batch Series.

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Critics Reviews

Ki One Distillery official tasting notes (Batch 7):
"The limited-edition release is the first time Ki One has introduced a whisky matured exclusively in first-fill ex-bourbon casks. This expression is bottled at a hearty cask strength of 56.9% ABV, without any dilution after maturation. Batch 7 showcases its vibrant character with fresh aromas of summer fruits, balanced by rich, deep spice notes."

Ki One awards context — sibling expressions:
Gold Medal — 2025 IWSC (Eagle Edition, American oak / ex-bourbon) · Worldwide Whisky Trophy 2025 IWSC (Unicorn Edition, first Korean whisky to achieve this) · Double Gold — 2024 SFWSC (Batch 3) · Gold — 2025 SFWSC (Tiger Edition)

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Tasting Profile

Nose
Vibrant and expressive — the fresh aromas of summer fruits that the distillery specifically identifies arriving with the immediacy that first-fill ex-bourbon cooperage and Korea's hot summer maturation cycles together produce. Maple syrup and vanilla lead the most classically bourbon-barrel-derived aromatic notes, the first-fill casks at their most generously wood-sugar-saturated. Warm banana adds the most specifically American oak secondary aromatic. Brown sugar sweetness and plenty of barley notes carry the base spirit character through the new-wood richness. Spiced orange and vanilla cream add the most nuanced and the most specifically Ki One-characteristic secondary aromas. Deep spice notes build with air — the Korean peninsula's winter contraction pushing the spirit deep into the most spice-compound-rich outer wood layers multiple times across each year of maturation.

Palate
Rich, deep, and spice-forward at 56.9% cask strength — considerably more powerful than the Eagle Edition's 43% presentation of the same cask style, and more specifically bourbon-concentrated than any multi-use cooperage Ki One has previously released. Robust malt carries the base spirit character. Maple syrup and butterscotch carry the first-fill bourbon wood's sweetest contributions. Warm banana and tropical fruit add the summer-season heat's most direct contribution to the spirit's character. The deep spice notes that the distillery specifically identifies — and that Korea's icy winters most specifically and most dramatically extract from the barrel staves — carry through the mid-palate with genuine intensity, the warming, resinous wood-spice quality that distinguishes first-fill from multi-use cooperage at its most vivid. At full cask strength, every quality is amplified.

Finish
Long and oak-spiced — the most specifically first-fill ex-bourbon and the most characteristically Ki One finishing quality in genuine combination. Brown sugar, cinnamon, and fragrant, warming oak carry the close with the confident length that the accelerated Korean climate maturation produces. The summer fruit freshness of the nose gives way to the deep, resinous wood-spice of the finish, the two poles of a whisky built across extreme seasonal cycles.

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Quick Overview

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Food Pairings

• Korean BBQ and galbi — the caramel and spiced oak finding natural alignment with charred meat
• Vanilla-forward desserts — crème brûlée, banana pudding, butterscotch tart
• Dark chocolate with sea salt
• Aged cheddar and nutty hard cheeses