Irish single grain whiskey doesn't get nearly enough attention, and that's partly the category's own fault. For years, grain whiskey was the invisible workhorse — the blending component nobody talked about at dinner. Two Stacks, the independent Irish outfit that's been making quiet waves since their launch, clearly disagrees with that assessment. Their Single Grain Double Barrel expression takes the lighter, more approachable character of grain whiskey and runs it through a double maturation process that adds genuine complexity at a price point that won't make your wallet weep.
At 43% ABV, this sits just above the legal minimum and feels like a conscious decision rather than a cost-cutting measure. There's enough strength here to carry flavour without the burn that might put off someone exploring Irish whiskey for the first time. The double barrel treatment — though Two Stacks haven't specified the exact cask types — suggests they're aiming to layer sweetness and spice in a way that single cask maturation wouldn't achieve alone. It's the kind of thoughtful production choice that separates the craft operators from the contract bottlers.
What I find interesting about Two Stacks as a brand is their willingness to release whiskeys that don't fit neatly into the usual Irish categories. They're not chasing the single pot still premium market or trying to out-age the established players. Instead, they're finding gaps — and single grain Irish whiskey aged in two different cask types is very much a gap in most people's collections.
Tasting Notes
I'll be honest — I'm not going to manufacture specific tasting notes here. What I can tell you is that single grain Irish whiskey, by its nature, tends toward a lighter, sweeter profile than its malt or pot still cousins. The double barrel maturation should add layers of vanilla, caramel, and possibly some dried fruit or baking spice depending on the cask selection. At 43%, expect a creamy, approachable texture with enough weight to feel satisfying rather than thin. This is a style that rewards patience — give it ten minutes in the glass and see what develops.
The Verdict
At £25.50, this is genuinely difficult to argue with. You're getting an independently produced Irish single grain with double cask maturation for less than the price of most standard blend offerings from the big houses. That alone makes it worth a punt. Two Stacks are doing something credible in the Irish whiskey space — taking underappreciated styles and presenting them with care and intention. Is it going to redefine your understanding of whiskey? Probably not. But it's a well-priced, well-considered dram that does exactly what it sets out to do. For anyone curious about grain whiskey as a category, or looking for something lighter and more versatile than the usual suspects on the shelf, this is a smart buy. A solid 7.5 out of 10 — it earns its score through honest value and genuine drinkability rather than hype.
Best Served
This is a natural highball whiskey. Pour a measure over ice in a tall glass, top with good soda water and a strip of lemon peel. The lighter grain character opens up beautifully with dilution, and the double barrel sweetness gives it enough backbone to stand up to the fizz. Equally good neat as an after-dinner sipper when you want something uncomplicated but not boring. On a warm evening, try it with tonic water and a sprig of fresh mint — the grain sweetness plays surprisingly well against the bitterness.
