The rubric
Every PintLeague score is the weighted average of five dimensions. The same rubric, every pint, every venue. Here's exactly what each one measures - and what separates a perfect example from one that's merely acceptable.
A Guinness is a two-stage pour. There are no shortcuts.
Perfect
Glass tilted 45°, poured to the bottom of the harp, left to settle 119 seconds, topped off with the tap pushed back to deepen the head. Total time: about two minutes.
Acceptable
Two-part pour completed, settle interrupted but visible. Surge has fully separated before the top-off.
Foul
Single-pour. Top-off before the surge has settled. Glass held upright on the first pull. Any of these and the score collapses.
The crown above the rim. It should sit proud, like a soft-served swirl.
Perfect
A confident dome rising 3–5mm above the rim, tight surface, no bubbles, holding shape until the first sip.
Acceptable
Flat-topped head sitting flush with the rim. Slightly loose foam structure but still uniform.
Foul
Concave head, large surface bubbles, foam collapsed below the rim, or a poured-flat finish. A dome that sinks in 30 seconds is a fail.
Cool, not frozen. A frosted glass kills the flavour and shocks the head.
Perfect
Glass straight from a cold-water rinse, around 4–6°C. Light condensation only - no ice crystals, no frost ring.
Acceptable
Ambient glass, dry but cool to the touch. Tolerated; not preferred.
Foul
Freezer-frosted glass, visible ice. Or a warm glass straight off the drying rack - the head dissolves on contact.
What's actually in the glass. The single heaviest dimension.
Perfect
Deep ruby-black body under the light. Clean roast and chocolate notes, silken mouthfeel, lacing that climbs the glass in even rings as you drink.
Acceptable
Body is dark and clean. Mild flavour drop-off after the first third. Lacing patchy but present.
Foul
Sour or metallic notes - line is dirty. Thin, watery mouthfeel - keg is on its last legs. No lacing at all - the glass wasn't beer-clean.
A pint is the room it's poured in. Marks the venue, not the visit.
Perfect
A room that takes Guinness seriously - proper glassware, unhurried service, the right volume to hold a conversation. A place you'd come back to for the second.
Acceptable
Solid pub fundamentals. Service knows the pour. Maybe a TV too loud or a chain feel, but the room rewards you for being there.
Foul
Plastic cup, frosted novelty glass, service that rushes the pour, or a venue where Guinness is clearly an afterthought.
Each dimension is scored 1–5. The composite is a weighted sum that rounds to one decimal place. Pint quality carries the most weight because what's in the glass matters more than the room around it.
composite = pour×0.20 + dome×0.20 + glass_temp×0.15
+ quality×0.30 + atmosphere×0.15