Style: Imperial Stout

All Styles

Style Profile based on 2,425 recipes

BU:GU

0.61

Hops

5.6 g/L

Mash pH

5.45

Style Guidelines BJCP 2015 Beer
OG
1.075 1.115
1.098
FG
1.018 1.03
1.024
IBU
50 90
59
ABV
8% 12%
9.8%
SRM
30 40
Description

An intensely-flavored, big, dark ale with a wide range of flavor balances and regional interpretations. Roasty-burnt malt with deep dark or dried fruit flavors, and a warming, bittersweet finish. Despite the intense flavors, the components need to meld together to create a complex, harmonious beer, not a hot mess. History: A style with a long, although not necessarily continuous, heritage. Traces roots to strong English porters brewed for export in the 1700s, and said to have been popular with the Russian Imperial Court. After the Napoleonic wars interrupted trade, these beers were increasingly sold in England. The style eventually all but died out, until being popularly embraced in the modern craft beer era, both in England as a revival and in the United States as a reinterpretation or re-imagination by extending the style with American characteristics. Style Comparison: Like a black barleywine with every dimension of flavor coming into play. More complex, with a broader range of possible flavors than lower-gravity stouts.

Examples: American –Bell’s Expedition Stout, Cigar City Marshal Zhukov’s Imperial Stout, Great Divide Yeti Imperial Stout, North Coast Old Rasputin Imperial Stout, Sierra Nevada Narwhal Imperial Stout; English – Courage Imperial Russian Stout, Le Coq Imperial Extra Double Stout, Samuel Smith Imperial Stout

Typical Grain Bill

% of total grain weight across all recipes · sums to ~100%

Common Additions

% of Imperial Stout recipes using each malt category (addition % in brackets)

Hop Usage by Addition Type

g/L · median with IQR range

Bittering
0.82 g/L 2.73 g/L
1.5 g/L
Flavour
0.68 g/L 2.07 g/L
1.37 g/L
Aroma
0.69 g/L 2.31 g/L
1.37 g/L
Whirlpool
0.58 g/L 1.88 g/L
1.21 g/L
Common Hops

% of Imperial Stout recipes using each hop

Dry-Hop Rate by Year

g/L · median with IQR range

2018
3 g/L 3 g/L
3 g/L
2019
2.14 g/L 2.14 g/L
2.14 g/L
2020
0.64 g/L 2.43 g/L
1.82 g/L
2021
0 g/L 0 g/L
0 g/L
2022
1.45 g/L 1.45 g/L
1.45 g/L
2023
5 g/L 5 g/L
5 g/L
2024
0 g/L 0 g/L
0 g/L

dated Imperial Stout recipes with at least one dry-hop addition

Common Fermentables

Colour = malt category · bar = % of recipes

Mash Profile
  • 76% Single Infusion
  • 19% Step Mash
  • 5% Decoction

196 recipes with mash data

Typical Water Profile
  • 100 ppm Ca²⁺
  • 5 ppm Mg²⁺
  • 35 ppm Na⁺
  • 60 ppm Cl⁻
  • 53 ppm SO₄²⁻
  • 235 ppm HCO₃⁻

median across recipes with a declared water profile

Similar Styles

Ranked by similarity across OG, IBU, ABV, hop rate, and grist composition.