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BJCP 2021 · 18B · Pale American Ale

American Pale Ale

The BJCP 2021 vital statistics for American Pale Ale (style 18B), with the numbers worked through for a 19 liter batch.

SpecificationRange
Original gravity (OG)1.045 – 1.060
Final gravity (FG)1.010 – 1.015
Bitterness (IBU)30 – 50
Color (SRM)5.0 – 10.0
Color (EBC)9.8 – 19.7
Alcohol (ABV)4.5 – 6.2%
Appearance Pale Amber
Apparent attenuation at the midpoint76%
BU:GU ratio at the midpoint0.76 — balanced, leaning bitter

A starting point for a 19 liter batch

Aiming at the middle of the range, at 72% brewhouse efficiency, using base malt at 36 PPG:

  • 4.6 kg (10.2 lb) of base malt to reach OG 1.052. Specialty malt displaces some of that and usually contributes fewer points.
  • 31 g (1.1 oz) of a 10% alpha pellet hop at 60 minutes for 40 IBU. Late and whirlpool additions add aroma without moving this much.
  • A yeast attenuating around 76% to finish near FG 1.012. Mash temperature will move this by several percent in either direction.

These are arithmetic, not a recipe — they tell you the size of the grain bill and hop charge you are aiming for, so you can tell straight away whether a recipe you are looking at is in the right territory.

Reading the numbers

At the midpoint of the ranges this style is balanced, leaning bitter — a BU:GU ratio of 0.76, meaning 40 IBU against 52 gravity points. The gravity range implies about 76% apparent attenuation, which is what you should be selecting a yeast for.

A beer in the middle of this style lands around 5.3% ABV. The ABV calculator will tell you where yours actually finished once you have both gravity readings.

Judges assess against the full written style description — aroma, flavor, mouthfeel and history — not only these figures. The BJCP guidelines carry the complete entry. What the numbers give you is the target to design a recipe against.

Other styles in Pale American Ale

All 110 BJCP 2021 styles →

Design a American Pale Ale recipe

Brewgravity shows your gravity, bitterness, color and alcohol against this style’s ranges as you build the recipe, so you know before brew day whether it lands in the box.

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