Style: Russian Imperial Stout

All Styles

Style Profile based on 675 recipes

BU:GU

0.57

Hops

5.7 g/L

Mash pH

5.48

Style Guidelines AABC 2010
OG
1.075 1.115
1.097
FG
1.018 1.03
1.023
IBU
50 90
54
ABV
8% 12%
9.8%
SRM
30 40
Description

Colour may range from very dark reddish-brown to jet black. Opaque. Deep tan to dark brown head. Generally has a well-formed head, although head retention may be low to moderate. High alcohol and viscosity may be visible in “legs” when beer is swirled in a glass. Aroma: Rich and complex, with variable amounts of roasted grains, maltiness, fruity esters, hops, and alcohol. The roasted malt character can take on coffee, dark chocolate, or slightly burnt tones and can be light to moderately strong. The malt aroma can be subtle to rich and barleywine-like, depending on the gravity and grain bill. May optionally show a slight specialty malt character (e.g., caramel), but this should only add complexity and not dominate. Fruity esters may be low to moderately strong, and may take on a complex, dark fruit (e.g., plums, prunes, raisins) character. Hop aroma can be very low to quite aggressive, and may contain any hop variety. An alcohol character may be present, but shouldn’t be sharp, hot or solventy. Aged versions may have a slight vinous or port-like quality, but shouldn’t be sour. No diacetyl. The balance can vary with any of the aroma elements taking centre stage. Not all possible aromas described need be present; many interpretations are possible. Aging affects the intensity, balance and smoothness of aromatics. Flavour: Rich, deep, complex and frequently quite intense, with variable amounts of roasted malt/grains, maltiness, fruity esters, hop bitterness and flavour, and alcohol. Medium to aggressively high bitterness. Medium-low to high hop flavour (any variety). Moderate to aggressively high roasted malt/grain flavours can suggest bittersweet or unsweetened chocolate, cocoa, and/or strong coffee. A slightly burnt grain, burnt currant or tarry character may be evident. Fruity esters may be low to intense, and can take on a dark fruit character (raisins, plums, or prunes). Malt backbone can be balanced and supportive to rich and barleywine-like, and may optionally show some supporting caramel, bready or toasty flavours. Alcohol strength should be evident, but not hot, sharp, or solventy. No diacetyl. The palate and finish can vary from relatively dry to moderately sweet, usually with some lingering roastiness, hop bitterness and warming character. The balance and intensity of flavours can be affected by aging, with some flavours becoming more subdued over time and some aged, vinous or port- like qualities developing. Mouthfeel: Full to very full-bodied and chewy, with a velvety, luscious texture (although the body may decline with long conditioning). Gentle smooth warmth from alcohol should be present and noticeable. Should not be syrupy and under-attenuated. Carbonation may be low to moderate, depending on age and conditioning.

Examples: Samuel Smith Imperial Stout, Brooklyn Black Chocolate Stout, Rogue Imperial Stout, North Coast Old Rasputin Imperial Stout, Victory Storm King, Bell’s Expedition Stout, Dogfish Head World Wide Stout, Thirsty Dog Siberian Night, Stone Imperial Stout, Avery The Czar, Founders Imperial Stout, Newport Beach John Wayne Imperial Stout, Great Lakes Blackout Stout

Typical Grain Bill

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

Common Additions

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

Hop Usage by Addition Type

g/L · median with IQR range

Bittering
0.58 g/L 2.48 g/L
1.37 g/L
Flavour
0.37 g/L 1.79 g/L
0.89 g/L
Aroma
0.4 g/L 2.22 g/L
1.2 g/L
Whirlpool
0.36 g/L 1.38 g/L
0.69 g/L

Common Hops

% of Russian Imperial Stout recipes using each hop

Typical Water Profile

Ca²⁺ 100 ppm
Mg²⁺ 5 ppm
Na⁺ 25 ppm
Cl⁻ 60 ppm
SO₄²⁻ 53 ppm
HCO₃⁻ 220 ppm

median across recipes with a declared water profile