Sour IPA

Sour IPA integrates controlled acidification into an IPA base, producing a bright, refreshing beer where hop aroma and acidity co-exist. Compared with standard IPA, it is sharper, tangier, and less bitterness-centered.

Defined by combining hop-forward character with deliberate souring, creating a tart yet aromatic profile.

Also known as: Sour IPA; Tart IPA
Family: Sour & Funky Beers - Sour, tart, wild, or mixed-fermentation beers
Variant of IPA - Within the Expressive Ales, defined by a clearly dominant sensory driver such as hop intensity, yeast expression, strength, or acidity.
Variant influence: Acidification introduced into an IPA structure.
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ABV, IBU and colour

This section summarises the typical alcohol strength, bitterness level and colour range of Sour IPA within the GBI model.

ABV: 7,2%
IBU: 32
Colour: 6,0 SRM / 11,8 EBC

Taste profile

The sensory profile below shows the typical intensity range of the 15 core flavour dimensions.

Colour:
Pale yellow Deep gold
Clarity:
Clear
Aroma – Malt:
Low Medium
Aroma – Hop:
High Very high
Aroma – Yeast:
Low
Aroma – Special:
None Low
Sweetness:
None Low
Sourness:
Medium High
Bitterness:
Medium High
Body:
Medium
Astringency:
Medium High
Carbonation:
Medium High
Alcohol Strength:
Medium High
Finish Length:
Long Very long
Oxidation:
None Low

Bright, tart, and aromatic—hop aroma remains prominent while acidity provides a refreshing, sharp edge.

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What gives Sour IPA its character

These structural drivers help shape its characteristic sensory profile.

  • Very high hop loading strongly contributes to hop aroma and can substantially increase perceived bitterness, while also adding some astringency and finish length.
  • High grist intensity provides more extract and fermentable material, supporting higher gravity and alcohol strength alongside fuller body, slightly greater sweetness and a longer finish.
  • Sharp, fast-developing lactic acidity from kettle souring.
  • Late dry hopping strongly increases fresh hop aroma and can also increase perceived bitterness.
  • A sulfate-forward chloride-to-sulfate balance accentuates perceived bitterness and can make the palate seem drier and less full.
  • Late-boil-focused hopping shifts the emphasis away from IBU toward hop aroma, while still contributing some perceived bitterness and finish length.
  • Finings remove suspended yeast and protein, improving clarity.
  • High attenuation converts more fermentable extract, tending to reduce residual sweetness and body while supporting alcohol formation and a drier finish.
  • Low crystal usage slightly increases colour, body, sweetness, finish length and caramel-like malt aroma.

History

Developed in modern craft brewing as brewers combined souring techniques with hop-forward IPA structures.

How Sour IPA compares to other beer styles

This comparison shows meaningful differences in sensory ranges and style character based on the GBI data.

Sour IPA vs American Wild Ale

Compared with American Wild Ale, Sour IPA has:

  • more intense hop aroma
  • more bitter
  • more astringency

Other differences:

  • American Wild Ale can be hazier.
  • The yeast aroma range of American Wild Ale extends to higher intensities.
  • American Wild Ale can be less sour.
  • American Wild Ale can have a lighter body.
  • American Wild Ale can be more highly carbonated.
  • American Wild Ale can have a milder alcohol impression.
  • American Wild Ale can have a shorter finish.
  • American Wild Ale can be more oxidative.
  • Sour IPA has citrus, tropical and stonefruit hop notes, while American Wild Ale has earthy hop notes.
  • Sour IPA has bready malt notes and can have toasty and caramel malt notes.
  • Sour IPA has neutral yeast notes and can have fruity yeast notes. American Wild Ale has funky yeast notes.
  • Sour IPA uses American ale yeast, while American Wild Ale uses mixed fermentation.
  • American Wild Ale includes wheat; both styles include barley.
  • Sour IPA can use simple Sugars.

Sour IPA vs IPA

Compared with IPA, Sour IPA has:

  • more acidic

Other differences:

  • Sour IPA can be drier.
  • Sour IPA can be less bitter.
  • Sour IPA can be more astringent.
  • Sour IPA can have a longer finish.

Compare Sour IPA with another beer style

Choose any GBI beer style to compare sensory ranges and style character.

Want to explore the underlying data in more detail? Compare styles in the GBI Explorer →

Related styles

Other variants within the same style group as Sour IPA.

Best food pairings for Sour IPA

These food pairings complement the dominant sensory traits of Sour IPA.

  • Ceviche
  • Goat cheese
  • Spicy tacos

Service & Aging

Practical guidance for serving and handling Sour IPA.

Serving notes
Serve cold and fresh to keep acidity bright and hop aroma vivid
Pouring technique
Pour moderately to build a stable head · Carbonation lifts acidity and hop aroma
Aging potential
Drink very fresh · Hop aroma fades quickly and acidity can become sharp with age
Common faults
Excessive acidity · Hop–acid imbalance · Thin body
Style details
  • Origin: United States — Originating from American craft brewing.
  • Glassware: Tulip — Stemmed tulip glass that concentrates aroma and supports a stable head; ideal for aromatic ales and Belgian styles.
    Teku — Modern universal tasting glass designed for maximum aroma capture and sensory evaluation.
    Nonic Pint — British-style pint with outward bulge for grip and foam retention; common for ales and stouts.
  • Serving: Draft — Served on draft.
  • Aging vessel: Stainless — Aged or matured in stainless steel.
  • Packaging: Can — Packaged in can.

Commercial examples of Sour IPA

The following commercial examples illustrate widely recognised expressions of Sour IPA in the market.

  • Hudson Valley Incandenza
  • Hudson Valley Bloom
  • Hudson Valley Amorphia
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