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Constable McGrath

Method: All Grain
Style: Extra Special/Strong Bitter (ESB)
Boil Time: 90 min
Batch Size: 15 gallons (fermentor volume)
Pre Boil Size: 17.56 gallons
Post Boil Size: 6.31 gallons
Pre Boil Gravity: 1.062 (recipe based estimate)
Post Boil Gravity: 1.172 (recipe based estimate)
Efficiency: 75% (brew house)
Source: John B Marsh
Calories: 240 calories (Per 12oz)
Carbs: 21.7 g (Per 12oz)

Created: Wednesday October 12th 2022

Original Gravity:

1.073

Final Gravity:

1.014

ABV (standard):

7.7%

IBU (tinseth):

60.0

SRM (morey):

8.8

Mash pH

n/a

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
30 lb	United Kingdom - Maris Otter Pale30 lb Maris Otter Pale	38	3.75	76.9%
6 lb	American - Vienna6 lb Vienna	35	4	15.4%
2 lb	American - Caramel / Crystal 30L2 lb Caramel / Crystal 30L	34	30	5.1%
1 lb	Flaked Oats1 lb Flaked Oats	33	2.2	2.6%
39 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
2 oz	Columbus2 oz Columbus Hops	Pellet	13.4	Boil	90 min	32.62	12.5%
3 oz	Aussie Helga3 oz Aussie Helga Hops	Pellet	5.5	Boil	45 min	17.23	18.8%
3 oz	East Kent Goldings3 oz East Kent Goldings Hops	Pellet	5	Boil	15 min	8.47	18.8%
3 oz	Hallertau Hersbrucker3 oz Hallertau Hersbrucker Hops	Pellet	4	Boil	0.5 min	0.3	18.8%
3 oz	Aussie Helga3 oz Aussie Helga Hops	Pellet	5.5	Boil	0.5 min	0.41	18.8%
2 oz	Nasty Old Yard Hops2 oz Nasty Old Yard Hops Hops	Leaf/Whole	2	Whirlpool	0 min	1	12.5%
16 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
2 oz	Columbus (Pellet)	32.62	12.5%
6 oz	Aussie Helga (Pellet)	17.64	37.6%
3 oz	East Kent Goldings (Pellet)	8.47	18.8%
3 oz	Hallertau Hersbrucker (Pellet)	0.3	18.8%
2 oz	Nasty Old Yard Hops (Leaf/Whole)	1	12.5%
16 oz / $ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
18 gal	Infusion	160 °F	152 °F	120 min
1 gal	Fly Sparge	130 °F	130 °F	5 min
Starting Mash Thickness: 2.25 qt/lb

Other Ingredients

Amount	Name	Cost	Type	Use	Time
1 tsp	Whirlfloc		Water Agt	Boil	15 min.

Yeast

Lallemand - Verdant IPA

Amount:	2.50 Each	Cost:
Attenuation (avg):	80%	Flocculation:	High
Optimum Temp:	64 - 73 °F	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 353 B cells required

Omega Yeast Labs - Brettanomyces Lambicus OYL-203

Amount:	2.50 Each	Cost:
Attenuation (custom):	80%	Flocculation:	Low
Optimum Temp:	68 - 85 °F	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 353 B cells required

- Marsh Farmhouse Slurry

Amount:	1 Each	Cost:
Attenuation (custom):	80%	Flocculation:	Low
Optimum Temp:	65 - 78 °F	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 353 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.44 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

Constable McGrath was a fine officer in Thursoe Scotland who I met on a single track road in the northern highlands. After a motor accident where I was run off the road, he helped me and got me on my way. I will always be grateful to him and his fine and generous character. God blesses you, Constable McGrath.

Adding Brett Bacillus and old stinky cheesy smelling hops to a classic ESB Recipe....The BrettBac was barm from a previous batch of Belgian Bretty Boop which I fed and nurtured for a couple of weeks. Hoping it turns out like a 17th-18th Century tavern ale....but how would I know....oh well.

Recipe Photos

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2023-05-08 00:26 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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