Imperial Stout

A strong, dark, intensely flavored stout with roasted malt, chocolate, dark fruit, and noticeable alcohol warmth. Full-bodied and bold. Compared with standard stout, it is denser, richer, and much more warming.

Defined by extreme roast intensity, high alcohol, and layered complexity.

Also known as: Russian Imperial Stout; Imperial Stout
Family: Strong & Warming Beers - Strong ales like Tripel, Barleywine, and Imperial styles
Variant of Stout - Within the Balanced Ales, defined by structural balance between malt, hop, and alcohol without dominant fermentation character.
Variant influence: Elevated strength increases body and intensity.
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ABV, IBU and colour

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

ABV: 8,1%
IBU: 63
Colour: 58,0 SRM / 114,3 EBC

Taste profile

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

Colour:
Copper Black
Clarity:
Clear Slight haze
Aroma – Malt:
High Very high
Aroma – Hop:
Medium High
Aroma – Yeast:
Low
Aroma – Special:
Low High
Sweetness:
Medium
Sourness:
None Low
Bitterness:
Medium
Body:
High Very high
Astringency:
Medium High
Carbonation:
Medium High
Alcohol Strength:
High
Finish Length:
Medium Long
Oxidation:
None Low

Structurally defined by pronounced malt expression, pronounced body and pronounced alcohol strength.

Built on extreme gravity and layered roast complexity, integrating alcohol warmth within a dense structural base. Robust, bold, warming, and layered with chocolate and coffee-like malt.

Why Imperial Stout tastes like it does

These structural drivers explain its characteristic flavour balance.

  • Very high toast level creates intense toasted aroma, deep melanoidin character and pronounced malt-driven complexity.
  • Increased ester/phenols.
  • Primary emphasis on early-boil hops for maximum IBU contribution.
  • Very high roast level creates very dark colour, intense roast flavour, firm bitterness and a pronounced roasted character dominating the malt profile.
  • Moderately hard water sharpens hop brightness and increases minerality while slightly reducing fullness.

Style details

  • Origin: UK — Originating from British ale traditions.
  • Glassware: Snifter — Curved snifter used for strong, complex ales or barrel-aged beers to enhance warming and aroma concentration.
    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.
  • Serving: Draft — Served on draft.
  • Conditioning: Keg Conditioned — Carbonated and served from keg systems.
  • Aging vessel: Stainless — Aged or matured in stainless steel.
  • Packaging: Can — Packaged in can.

History

Originated in 18th-century Britain as export-strength stout for the Russian court, later revived and expanded by modern craft brewers.

Related styles

Other variants within the same style group as Imperial Stout.

How Imperial Stout compares to other beer styles

Comparing styles highlights structural differences in aroma, balance, and intensity across the 15 GBI sensory dimensions.

Imperial Stout vs Stout

  • much fuller body
  • much stronger alcohol impression
  • more hop aroma
  • higher carbonation
  • more malt aroma

Imperial Stout represents a distinctly different expression compared to Stout. In the aroma, it shows a more pronounced hop aroma and a stronger malt presence. On the palate, it presents a fuller body and a stronger alcohol impression and a livelier carbonation profile.

Imperial Stout vs Barleywine

  • much deeper colour
  • more hop aroma
  • drier profile
  • more astringency
  • more pronounced special character

In contrast to Barleywine, Imperial Stout presents a clearly different overall profile. The profile comes across as noticeably drier. Visually, it appears darker in colour. In the aroma, it shows a more pronounced hop aroma and more pronounced secondary aromatic notes.

Compare Imperial Stout with:

Compare with another style

Select another beer style to see how it compares to Imperial Stout.

Best food pairings for Imperial Stout

These food pairings complement the dominant sensory traits of Imperial Stout.

  • Chocolate
  • Blue cheese
  • Desserts

Service & Aging

Practical guidance for serving and handling Imperial Stout.

Serving notes

  • Serve cool to cellar temperature
  • Allow warming in glass

Pouring technique

  • Slow pour
  • Allow head to form naturally

Aging potential

  • Excellent aging: 1–5 years

Common faults

  • Solvent alcohol
  • Oxidation

Commercial examples of Imperial Stout

The following commercial examples illustrate widely recognised expressions of Imperial Stout in the market.

  • North Coast Old Rasputin
  • Samuel Smith Imperial Stout
  • Great Divide Yeti

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Imperial Stout – Competition results (2025)

Competition categories reflect the official classification used by each event and may include stylistically adjacent interpretations.

European Beer Star 2025

Imperial Stout

  • Gold – 7 VIDAS - Russian Imperial Stout – (Cerveza 7 VIDAS , Peru)
  • Silver – Night Rocker – (Molo Brew , Norway)
  • Bronze – Mr. Sandman – (River North Brewery , United States)

Source: European Beer Star (official website)

Great American Beer Festival 2025

Imperial Stout

  • Gold – Raven's Home – (Morgan Territory Brewing , Tracy, California, United States)
  • Silver – Romanov's Revenge – (Maple Branch Craft Brewery , Fort Worth, Texas, United States)
  • Bronze – Reduction Ratio – (UPP Liquids , Bend, Oregon, United States)

Source: Great American Beer Festival (official website)

World Beer Cup 2025

American-Style Imperial Stout

  • Gold – Fulcrum Imperial Stout – (ZwanzigZ Brewing , United States)
  • Silver – Thunderbolt Stout – (Valhöll Brewing , United States)
  • Bronze – Lights Out – (Project 9 Brewing , United States)

British-Style Imperial Stout

  • Gold – Wrecking Ball Imperial Stout – (No-Li Brewhouse , United States)
  • Silver – Fayston Maple Imperial Stout – (Lawson's Finest Liquids , United States)
  • Bronze – Raven's Revenge – (Beachwood Brewing , United States)

Source: World Beer Cup (official website)

Dutch Beer Challenge 2025

Imperial Stout

  • Gold – Zwartbaard – (Amsterdamse Bierbrouwerij Homeland BV , Netherlands)
  • Silver – Export Porter 1750 – (Brouwerij Kees , Netherlands)
  • Bronze – Hel & Verdoemenis – (Brouwerij de Molen B.V. , Netherlands)
  • Bronze – Heft Ruig Russian Imperial Stout – (Brouwerij Heft , Netherlands)

Source: Dutch Beer Challenge (official website)

Brussels Beer Challenge 2025

Russian Imperial Stout

  • Gold – Mazout – (Hoppy Road , France)
  • Silver – Speedway Stout – (AleSmith Brewing Company , United States)
  • Bronze – Imperial Russian Stout – (Brasserie St Germain/ Page 24 , France)

Source: Brussels Beer Challenge (official website)

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