Stone Imperial Whiskey Cask Strength
Stone Imperial Whiskey Cask Strength is a 127-proof (63.5% ABV) whiskey in a 750mL bottle — a monster of a spirit born from a collaboration between Stone Brewing of Escondido, California and Iowa's Foundry Distilling Co. Foundry distilled the wort of Stone Imperial Stout — the liquid from the first stage of the brewing process — then aged it for 30 months in 30-gallon charred American oak barrels, creating Foundry's first whiskey made from an Imperial Stout. It is in stock and ready to order online from Del Mesa Liquor.
- Proof / ABV: 127 proof / 63.5% ABV (cask strength)
- Size: 750mL
- Aging: 30 months in 30-gallon charred American oak barrels
- Origin: distilled by Foundry Distilling Co., Iowa, in partnership with Stone Brewing, California
- Profile: distilled from Stone Imperial Stout wort; bottled at cask strength
From Stout Wort to Cask-Strength Whiskey
Stone Imperial Stout was first brewed more than two decades ago and became one of Stone's most celebrated beers, returning as the centerpiece of the 2022 Fan Favorites Series. Foundry Distilling took that same stout's wort and distilled it, then laid the spirit down in charred oak for 30 months — Foundry's first-ever Imperial Stout whiskey. The result pours golden amber and drinks like a beer lover's whiskey dream. Pair it with the beer that started it all by browsing more American whiskey from independent distillers, or explore the full Stone Brewing lineup at Del Mesa Liquor.
Tasting Notes
Nose: Rich burnt sugar and espresso with vanilla and cedar.
Palate: Smooth milk chocolate and hazelnut over dark chocolate, coffee, and cream, layered with oak.
Finish: Long and warming, with oak and stone-fruit notes lingering.
How to Enjoy
At 127 proof, this is a whiskey that rewards patience — pour neat and let it open in the glass, or add a few drops of water to unlock the chocolate and espresso layers. It is a natural after-dinner pour and a standout gift for the craft-beer drinker who has everything. A single large ice cube tames the heat without dulling the flavor.
Frequently Asked Questions
What is Stone Imperial Whiskey made from?
It is distilled from the wort of Stone Imperial Stout — the unfermented beer liquid from the first stage of brewing — then aged 30 months in charred oak.
What is the proof of Stone Imperial Whiskey Cask Strength?
127 proof (63.5% ABV), bottled straight at cask strength.
Who distills Stone Imperial Whiskey?
Iowa-based Foundry Distilling Co., in collaboration with Stone Brewing of Escondido, California.
Is Stone Imperial Whiskey a limited release?
It was released alongside the 2022 Fan Favorites return of Stone Imperial Stout and is only available at Foundry's Iowa distillery and select Southern California stores.
Whiskey distilled from beer, bottled at 127 proof — order Stone Imperial Whiskey Cask Strength online now from Del Mesa Liquor in San Diego, CA, before this barrel-strength oddity disappears.