Untitled Art White Grape Sour 4Pk

Untitled Art White Grape Sour 4Pk is a 6.0% ABV kettle sour ale brewed with real white grape juice, sold as a four-pack of cans. What distinguishes this release is the use of thiolized yeast — an innovative strain more commonly found in hazy IPAs — to unlock aromatic tropical fruit character within the sour framework.
Quick Facts: ABV: 6.0%  |  Origin: Waunakee, Wisconsin  |  Style: Fruited Kettle Sour  |  Brewery: Untitled Art (brewed at Octopi Brewing)
Production & Heritage
Untitled Art is a nomadic brewing project that partners with Octopi Brewing, a state-of-the-art contract and collaboration facility located in Waunakee, Wisconsin, just outside Madison. This White Grape Sour starts as a kettle sour base — acidified in the kettle before boiling to achieve a controlled, clean tartness — then receives an addition of white grape juice and natural flavors. The standout production choice here is the introduction of thiolized yeast, a strain engineered to release thiol compounds that produce intense tropical and stone-fruit aromatics. Typically deployed in hop-forward IPAs, applying it to a sour ale represents a genuinely experimental approach that pushes the style in a wine-adjacent direction.
Tasting Notes
Aroma: Floral and tart on the nose, opening with bright citrus before giving way to a more defined white grape character. Reviewers note resemblance to Sauvignon Blanc, with hints of daffodil and white currant emerging as the beer warms.
Taste: The entry is crisp and lightly tart, immediately recalling sparkling white grape juice with a natural sweetness tempered by clean acidity. At mid-palate, tropical and stone-fruit notes from the thiolized yeast assert themselves, adding unexpected depth. The sweet-tart balance stays controlled throughout — sour enough to register but not puckering.
Finish: Medium-short and refreshing, with lingering tropical fruit, pear skin, and a gentle grape-skin dryness. The overall impression is light and drinkable, closer to a crisp Moscato than a heavy craft sour.
How to Drink White Grape Sour
Serve cold, around 38–42°F, straight from the can or poured into a stemmed tulip glass to concentrate the floral aromatics. This sour is highly sessionable and works well on its own as a warm-weather sipper. For cocktail-curious drinkers: try it in a Sour Shandy mixed with lemonade and fresh basil for a garden-party cooler; use it as the base for a Beer Mimosa in place of sparkling wine, paired with a splash of peach nectar; or blend it into a Grape Radler with elderflower tonic for a low-ABV spritz alternative.
Best For
Wine drinkers exploring craft beer for the first time
Backyard gatherings and summer cookouts where sessionability matters
Building a fruited-sour tasting flight alongside other Untitled Art variants
Gifting to a craft-beer enthusiast who gravitates toward experimental styles
Frequently Asked Questions
What does White Grape Sour taste like? It drinks like sparkling white grape juice with a clean, tart backbone and tropical-fruit overtones from the thiolized yeast. The overall profile is light, crisp, and reminiscent of a dry Moscato or Sauvignon Blanc.
How does White Grape Sour compare to DESTIHL Wild Sour Series? DESTIHL’s Wild Sour beers tend to use Lactobacillus cultures for a more pronounced, yogurt-like tartness, while Untitled Art’s kettle-sour method and thiolized yeast produce a cleaner, more wine-like acidity with greater tropical fruit complexity. Both sit in the fruited-sour category, but the White Grape Sour leans noticeably closer to a sparkling wine experience.
Is White Grape Sour good for beginners? Yes — its moderate 6.0% ABV, approachable sweetness, and controlled tartness make it an excellent gateway into sour ales, especially for those who already enjoy white wine or hard seltzer.
Where is White Grape Sour made? It is brewed at Octopi Brewing in Waunakee, Wisconsin, a contract brewing facility located just north of Madison that produces beers for Untitled Art and other collaborative projects.
What foods pair well with White Grape Sour? Fresh goat cheese or burrata, because the acidity cuts through the creaminess; grilled shrimp with citrus glaze, which echoes the beer’s tropical notes; a Waldorf salad with green apple and grapes for a complementary fruit pairing; mild whitefish ceviche, where the tartness mirrors the lime; and light fruit tarts or panna cotta for dessert.
What sizes does White Grape Sour come in? It is commonly available as a four-pack of cans, which is the standard retail format for this release.
Is White Grape Sour worth the price? It positions in the mid-range craft-sour tier, and the use of real white grape juice plus thiolized yeast delivers a noticeably more complex and wine-like experience than many comparably priced fruited kettle sours.
Why White Grape Sour?
The defining move here is the thiolized yeast — a strain designed to amplify thiol-driven tropical aromatics in hops, repurposed to see what it could unlock in a fruited sour context. That decision gives this beer a layered, wine-like aromatic profile that most kettle sours simply don’t achieve. Holding a 3.7 rating on Untappd across hundreds of reviews, it has earned a solid reputation among sour enthusiasts for balancing authentic grape character with restrained tartness. For anyone looking for a sour that bridges the gap between craft beer and white wine, this is one of the more convincing executions in the category.