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The Duke English IPA

Method: All Grain
Style: English IPA
Boil Time: 90 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 3 gallons
Pre Boil Gravity: 1.112 (recipe based estimate)
Post Boil Gravity: 1.061 (recipe based estimate)
Efficiency: 74% (brew house)
Source: Mike Treadway and Sean Vreeland of Keller, TX
Hop Utilization: 99%
Calories: 200 calories (Per 12oz)
Carbs: 18.4 g (Per 12oz)

Created: Friday October 27th 2023

Original Gravity:

1.061

Final Gravity:

1.012

ABV (standard):

6.4%

IBU (tinseth):

49.2

SRM (morey):

13.1

Mash pH

n/a

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
10 lb	United Kingdom - Maris Otter Pale10 lb Maris Otter Pale	38	3.75	82.5%
10 oz	Bestmalz - BEST Biscuit10 oz BEST Biscuit	35	20	5.2%
8 oz	American - Caramel / Crystal 40L8 oz Caramel / Crystal 40L	34	40	4.1%
8 oz	United Kingdom - Extra Dark Crystal 120L8 oz Extra Dark Crystal 120L	33	120	4.1%
8 oz	American - Wheat8 oz Wheat	38	1.8	4.1%
194 oz / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
1.50 oz	Magnum1.5 oz Magnum Hops	Pellet	15	Boil	60 min	44.06	22.7%
1.60 oz	Fuggles1.6 oz Fuggles Hops	Pellet	4.5	Boil	10 min	5.11	24.2%
2 oz	East Kent Goldings2 oz East Kent Goldings Hops	Pellet	5	Boil	0 min		30.3%
1.50 oz	East Kent Goldings1.5 oz East Kent Goldings Hops	Pellet	5	Dry Hop	5 days		22.7%
6.60 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
1.50 oz	Magnum (Pellet)	44.06	22.7%
1.60 oz	Fuggles (Pellet)	5.11	24.2%
3.50 oz	East Kent Goldings (Pellet)	0	53%
6.60 oz / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
			--	152 °F	60 min
Starting Mash Thickness: 1.5 qt/lb

Other Ingredients

Amount	Name	Type	Use
1 tsp	Yeast Nutrient	Water Agt	Mash
1 each	Whirlfloc	Water Agt	Mash
1 tsp	Gypsum	Water Agt	Mash

Yeast

Imperial Yeast - A09 Pub

Amount:	1 Each	Cost:
Attenuation (custom):	79%	Flocculation:	Very High
Optimum Temp:	64 - 70 °F	Starter:	Yes
Fermentation Temp:	66 °F	Pitch Rate:	0.35 (M cells / ml / ° P) 109 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

Method: co2 CO₂ Level: 1.02 Volumes

Target Water Profile

Balanced Profile

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
0	0	0	0	0	0
Mash Chemistry and Brewing Water Calculator

Notes

Mash at 152° F (67° C) for 1 hour, mash out at 170° F (77° C). 90 minute boil

Ferment at 66° F (19° C) for the first 2 days and slowly ramp to 72° F (22° C) as signs of fermentation slow down. Hold at 72° F (22° C) until terminal gravity is reached.

Dry hop with 1.5 oz (43 g) of East Kent Goldings for 5 days, cold crash, and package. Force carbonate to 2.5 volumes of CO2.

First made 11/5/23. Mashed in at 152. Added 1 tsp gypsum to filtered water. Increased mash temp to 170 and then lifted grain basket and sparged with 1 gallon.

Pre boil gravity 1056, post boil 1061 confirmed with Tilt. Used 1 pint of A09 yeast from a dark mild that I’d bottled the same day. 12 hours later gravity had already fallen to 1046!

FG was 1012, so 79% attenuation which is very high for a British ale. There was an alcohol taste, likely from the hot fermentation. Put into cask on 11/19 with 3.5 oz corn sugar.

Last Updated and Sharing

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Public: Yup, Shared
Last Updated: 2023-11-20 03:01 UTC

Recipe costs can be adjusted by changing the batch size. They won't be saved but will give you an idea of costs if your final yield was different.

Cost for

Gallons

Cost by

Final Yield

	Cost $	Cost %
Fermentables	$
Steeping Grains (Extract Only)	$
Hops	$
Yeast	$
Other	$
Cost Per Barrel	$ 0.00
Cost Per Pint	$ 0.00
Total Cost	$ 0.00

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