KAKUIDA Brewery Sells Barrel-Aged Sour Stout "3+year" Aged for More Than 3 Years
Kagoshima's KAKUIDA Brewery is offering "Barrel-Aged Sour Stout 3+year," matured for more than three years in bourbon barrels, through its official online store. It is a bottle that balances the depth and aroma derived from wooden-barrel aging with a moderate acidity.
Hop BroKAKUIDA Brewery in Kagoshima has released "Barrel-Aged Sour Stout 3+year," and it's a pretty fascinating beer!
MugiWhoa! Even the name sounds intense! Does "3+year" really mean it's been aged for more than three years!?
Hop BroExactly. They aged stout in wooden barrels, then matured it for more than three years in bourbon barrels. The style is barrel-aged sour stout, and its appeal is a deep, mellow mouthfeel with a pleasant acidity.
MugiWhat even is that! If it's sour stout, is it sour? Heavy? Which is it~!?
Hop BroGood question. It's designed to have a clear acidic edge while keeping the stout's core weight, so it's balanced without being too light or too heavy. It's not just about barrel aroma either; it's the kind of beer where aging brings everything together.
MugiOhhh, that sounds like a grown-up two-in-one! I want the specs too!
Hop BroIt's 330ml, ABV 9.0%, IBU 75, and JPY 1,500 including tax (as of March 9, 2026). The ingredients are malt (made in the UK and Germany), brown sugar, hops, and barley. Keep it refrigerated below 10°C.
MugiIBU 75 makes it sound suddenly super technical! Is that going to be on the test!?
Hop BroNope, no test required（笑). IBU is a rough measure of bitterness, and 75 means it's definitely on the bitter side. But since this beer also has acidity and a sense of age, it's likely not as sharp as the number suggests. Plus, it won gold in the wood-chip/wood-barrel-aged sour beer category at JGBA 2024, so it's the real deal.
MugiWinning an award too makes it even stronger! There's something romantic about black-vinegar-country fermentation know-how showing up in beer, and now I just want to toast with KAKUIDA Brewery's 3+year right away!
The new release being introduced by KAKUIDA BREWERY is "Barrel-Aged Sour Stout 3+year". Its defining feature is a design in which aged stout is rested in wooden barrels and then further matured for more than three years in bourbon barrels, with the product page highlighting a "deep, mellow mouthfeel" and "just the right acidity."
This beer is a well-balanced expression that layers a clear acidic edge over the density of a dark beer. While taking a sour-leaning approach, it still retains the stout-derived center of gravity. Rather than simply emphasizing barrel aroma, it is the kind of beer meant to be enjoyed for the way aging brings the whole profile together.
Product Information (Official Listing)
- Product name: Barrel-Aged Sour Stout 3+year
- Volume: 330ml
- ABV: 9.0%
- IBU: 75
- Ingredients: Malt (produced in the UK and Germany), brown sugar, hops, barley
- Price: JPY 1,500 including tax (as listed on March 9, 2026)
- Storage: Refrigerate below 10°C
In addition, the product is listed as a Gold winner in the Japan Great Beer Awards 2024 "Sour Beer Style Aged with Wood Chips or Wooden Barrels (Bottle and Can Division)". Its award record in the barrel-aged sour category appears to support its flavor direction.
The brewery itself is located in Kagoshima Prefecture's "Kurozu no Sato" area, and its official introduction describes it as a small, handcrafted brewery that makes use of black vinegar brewing techniques. With that background in fermentation and aging expertise, the brewery's release of a long-aged stout like this is something that stands out as part of its character.
Information may be inaccurate. Please refer to the brewery’s official channels for the latest details.
Hop BroKAKUIDA Brewery in Kagoshima has released "Barrel-Aged Sour Stout 3+year," and it's a pretty fascinating beer!
MugiWhoa! Even the name sounds intense! Does "3+year" really mean it's been aged for more than three years!?
Hop BroExactly. They aged stout in wooden barrels, then matured it for more than three years in bourbon barrels. The style is barrel-aged sour stout, and its appeal is a deep, mellow mouthfeel with a pleasant acidity.
MugiWhat even is that! If it's sour stout, is it sour? Heavy? Which is it~!?
Hop BroGood question. It's designed to have a clear acidic edge while keeping the stout's core weight, so it's balanced without being too light or too heavy. It's not just about barrel aroma either; it's the kind of beer where aging brings everything together.
MugiOhhh, that sounds like a grown-up two-in-one! I want the specs too!
Hop BroIt's 330ml, ABV 9.0%, IBU 75, and JPY 1,500 including tax (as of March 9, 2026). The ingredients are malt (made in the UK and Germany), brown sugar, hops, and barley. Keep it refrigerated below 10°C.
MugiIBU 75 makes it sound suddenly super technical! Is that going to be on the test!?
Hop BroNope, no test required（笑). IBU is a rough measure of bitterness, and 75 means it's definitely on the bitter side. But since this beer also has acidity and a sense of age, it's likely not as sharp as the number suggests. Plus, it won gold in the wood-chip/wood-barrel-aged sour beer category at JGBA 2024, so it's the real deal.
MugiWinning an award too makes it even stronger! There's something romantic about black-vinegar-country fermentation know-how showing up in beer, and now I just want to toast with KAKUIDA Brewery's 3+year right away!
