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Atlas Porter

Method: BIAB
Style: English Porter
Boil Time: 30 min
Batch Size: 3.7 gallons (ending kettle volume)
Pre Boil Size: 4.05 gallons
Pre Boil Gravity: 1.047 (recipe based estimate)
Efficiency: 72% (ending kettle)
Hop Utilization: 94%
Calories: 171 calories (Per 12oz)
Carbs: 17 g (Per 12oz)

Created: Tuesday February 4th 2020

Original Gravity:

1.052

Final Gravity:

1.012

ABV (standard):

5.2%

IBU (tinseth):

25.9

SRM (morey):

23.8

Mash pH

5.5

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
96 oz	Crisp Malting - Finest Maris Otter96 oz Finest Maris Otter	36.8	2.4	81.4%
12 oz	Simpsons - Crystal Medium12 oz Crystal Medium	33	65.01	10.2%
6 oz	Crisp Malting - Pale Chocolate6 oz Pale Chocolate	32.7	220	5.1%
2 oz	Crisp Malting - United Kingdom - Brown Malt2 oz United Kingdom - Brown Malt	32.7	65	1.7%
2 oz	Crisp Malting - Chocolate Malt2 oz Chocolate Malt	32.66	450	1.7%
118 oz / $ 0.00

Hops

Amount	Variety	Cost	Type	AA	Use	Time	IBU	Bill %
0.35 oz	Yakima Valley Hops - Magnum0.35 oz Magnum Hops	$ 0.00 / oz $ 0.00	Pellet	12.6	Boil	30 min	16.77	18.9%
0.50 oz	Challenger0.5 oz Challenger Hops		Pellet	7.4	Boil	15 min	9.08	27%
1 oz	Challenger1 oz Challenger Hops		Pellet	7.4	Boil	0 min		54.1%
1.85 oz / $ 0.00

Show Summary View

Amount	Variety	Cost	IBU	Bill %
0.35 oz	Yakima Valley Hops - Magnum (Pellet)	$ 0.00 / oz $ 0.00	16.77	18.9%
1.50 oz	Challenger (Pellet)		9.08	81.1%
1.85 oz / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
4.74 gal	BIAB - Single Infusion - No Sparge	Infusion	158 °F	152 °F	60 min

Other Ingredients

Amount	Name	Type	Use	Time
0.63 tsp	Calcium Chloride (dihydrate)	Water Agt	Mash	1 hr.
0.38 tsp	Gypsum	Water Agt	Mash	1 hr.
0.25 tsp	Table Salt	Water Agt	Mash	1 hr.
0.50 each	Whirlfloc	Fining	Boil	10 min.
0.25 tsp	Wyeast - Beer Nutrient	Water Agt	Boil	10 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:	60 °F	Pitch Rate:	0.35 (M cells / ml / ° P) 63 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

Method: co2 Amount: 9.02 psi Temp: 40 °F CO₂ Level: 2.2 Volumes

Target Water Profile

London (Porter, dark ales)

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
100	5	25	150	50	100

Mash Chemistry and Brewing Water Calculator

Notes

Optional: Cherrywood Smoked malt at 15-20% as a substitute for base.

Optional Dry Yeast: Windsor (likely will only attenuate 60-65%)

Recipe Photos

Last Updated and Sharing

1,848

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Brews

Public: Yup, Shared
Last Updated: 2025-04-11 14:04 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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