Irish Stout

Tier A · BJCP 15B · Ale, fermented warm. A dark beer, usually served on nitrogen.

ABV

3.8-5.0%

IBU

25-45

SRM

25-40

Serve

42-45F

Glass

Tulip pint

Gas

nitrogen blend

Identify

Looks black across a room. Hold it to a light and the edges glow dark ruby red. A thick, creamy, tan head that holds its shape and lasts to the bottom of the glass. Poured on nitrogen the beer surges and clears from the bottom up before it settles. Almost no prickle on the tongue, which is the first surprise. Coffee arrives early, then a dry roasted bitterness that does not linger long. Light in the body despite looking heavy. Each mouthful leaves a ring of foam on the glass.

Place

Ireland. It grew out of London porter, and split off in its own direction in the late 1800s. Guinness Draught as you know it launched in 1959.

Cause

Every dark beer is dark because something in the grain was roasted. Which grain, and how far, is a decision, and it is the decision that separates an Irish Stout from every other dark beer on the bar. The cascade in a settling pint is real physics and it has been measured.

Confused with

English Porter, which is brown rather than black and much softer on the roast. Sweet Stout, which has lactose in it and tastes noticeably sweet. American Stout, which piles hops on top of the same roast. Schwarzbier, which is a dark lager and far lighter on the roast.

Numbers

An Irish Stout is a very light beer that has been made black and bitter with roasted barley, then pushed out of the tap on nitrogen instead of ordinary fizz. Those two decisions account for nearly everything about it, including the two things people get wrong. It is not actually black.

Will you like it and Try

Black coffee, or espresso without sugar. This is the closest match in the whole course. The roast in the beer and the roast in the coffee are the same kind of flavour. Dark chocolate at 70% or above. Same bitter roasted register, with a little sweetness underneath.

Order and Pair

Ask for a pint and then let it alone. A nitrogen pour needs to settle, and a good one takes about two minutes from order to hand. Do not chase the bartender. Rushing a settling pint is the one piece of bar etiquette that Irish pubs genuinely care about. Ask how fast the stout sells.

Judge, Myth and Remember

The head lasts to the bottom of the glass and leaves a ring for every mouthful. The roast reads as coffee, not as ash. There is a real difference and you can feel it as much as taste it. The finish is dry and clean, and it clears quickly rather than hanging around. It feels smooth.