Brewgravity

BJCP 2021 · 12C · Pale Commonwealth Beer

English IPA

The BJCP 2021 vital statistics for English IPA (style 12C), with the numbers worked through for a 19 liter batch.

SpecificationRange
Original gravity (OG)1.050 – 1.070
Final gravity (FG)1.010 – 1.015
Bitterness (IBU)40 – 60
Color (SRM)6.0 – 14.0
Color (EBC)11.8 – 27.6
Alcohol (ABV)5.0 – 7.5%
Appearance Medium Amber
Apparent attenuation at the midpoint79%
BU:GU ratio at the midpoint0.83 — clearly hop-forward

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:

  • 5.3 kg (11.6 lb) of base malt to reach OG 1.060. Specialty malt displaces some of that and usually contributes fewer points.
  • 41 g (1.4 oz) of a 10% alpha pellet hop at 60 minutes for 50 IBU. Late and whirlpool additions add aroma without moving this much.
  • A yeast attenuating around 79% 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 clearly hop-forward — a BU:GU ratio of 0.83, meaning 50 IBU against 60 gravity points. The gravity range implies about 79% apparent attenuation, which is what you should be selecting a yeast for.

A beer in the middle of this style lands around 6.3% 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 Commonwealth Beer

All 110 BJCP 2021 styles →

Design a English IPA 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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