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Murphy's Irish Stout klōn

Method: All Grain
Style: Irish Stout
Boil Time: 60 min
Batch Size: 6 gallons (fermentor volume)
Pre Boil Size: 7 gallons
Post Boil Size: 6 gallons
Pre Boil Gravity: 1.039 (recipe based estimate)
Post Boil Gravity: 1.045 (recipe based estimate)
Efficiency: 80% (brew house)
Source: Alchemist Prime
Calories: 148 calories (Per 12oz)
Carbs: 15.2 g (Per 12oz)

Created: Wednesday February 25th 2026

Murphy's Irish Stout

by So Cal Beer Guy

OG: 1.037 FG: 1.008 ABV: 3.9% IBU: 28

Guinness Clone

OG: 1.043 FG: 1.011 ABV: 4.2% IBU: 39

Look Out Itchy, He’s Irish

by Brainstem Brewing

OG: 1.045 FG: 1.012 ABV: 4.3% IBU: 36

Original Gravity:

1.045

Final Gravity:

1.011

ABV (standard):

4.5%

IBU (tinseth):

34.9

SRM (morey):

25.6

Mash pH

5.8

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
8 lb	Briess - Brewers Malt 2-Row8 lb Brewers Malt 2-Row	37	1.8	85.3%
9 oz	Briess - Chocolate9 oz Chocolate	25	350	6%
8 oz	Briess - Roasted Barley8 oz Roasted Barley	33.1	300	5.3%
5 oz	Bairds - British Crystal 50/60L5 oz British Crystal 50/60L	35	55	3.3%
150 oz / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
0.60 oz	Hopsteiner - Altus0.6 oz Altus Hops	Pellet	15.2	Boil	60 min	32.01	70.6%
0.25 oz	East Kent Goldings0.25 oz East Kent Goldings Hops	Pellet	6.6	Boil	15 min	2.87	29.4%
0.85 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
0.60 oz	Hopsteiner - Altus (Pellet)	32.01	70.6%
0.25 oz	East Kent Goldings (Pellet)	2.87	29.4%
0.85 oz / $ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
3.52 gal	Strike	164 °F	152 °F	60 min
4.66 gal	Sparge	168 °F	168 °F	15 min
Starting Mash Thickness: 1.5 qt/lb Starting Grain Temp: 65 °F

Other Ingredients

Amount	Name	Type	Use	Time
13.40 g	Chalk	Water Agt	Mash	1 hr.
1 g	Calcium Chloride (dihydrate)	Water Agt	Mash	1 hr.
1 g	Epsom Salt	Water Agt	Mash	1 hr.
2 g	Gypsum	Water Agt	Mash	1 hr.
2 g	Yeast Nutrient	Other	Boil	5 min.
1 g	Whirlfloc tablet	Other	Boil	5 min.

Yeast

Fermentis - Safale - English Ale Yeast S-04

Amount:	1 Each	Cost:
Attenuation (avg):	75%	Flocculation:	High
Optimum Temp:	54 - 77 °F	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 89 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

Method: co2 Amount: 6.72 psi Temp: 35 °F CO₂ Level: 2.2 Volumes

Target Water Profile

Dublin (Dry Stout)

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
110	4	12	19	53	280
Mash Chemistry and Brewing Water Calculator

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2026-03-03 16:08 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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