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Rainy Day Porter

Method: BIAB
Style: Brown Porter
Boil Time: 90 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 3 gallons
Post Boil Size: 5.5 gallons
Pre Boil Gravity: 1.101 (recipe based estimate)
Post Boil Gravity: 1.062 (recipe based estimate)
Efficiency: 75% (brew house)
Source: Todd W
Calories: 207 calories (Per 12oz)
Carbs: 24.7 g (Per 12oz)

Created: Friday March 13th 2026

Original Gravity:

1.062

Final Gravity:

1.020

ABV (standard):

5.4%

IBU (tinseth):

40.8

SRM (morey):

21.3

Mash pH

n/a

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
8.50 lb	Dingemans - Pale Ale 8.5 lb Pale Ale	37.72	3.9	70.8%
12 oz	Simpsons - Crisp Amber Malt12 oz Crisp Amber Malt	34	27	6.3%
12 oz	Simpsons - Aromatic Malt12 oz Aromatic Malt	33	23.04	6.3%
12 oz	Bairds - Medium Crystal12 oz Medium Crystal	35.4	75	6.3%
4 oz	United Kingdom - Roasted Barley4 oz Roasted Barley	29	550	2.1%
1 lb	Invert Sugar Syrup1 lb Invert Sugar Syrup - (late boil kettle addition)	36	1	8.3%
192 oz / $ 0.00

Hops

Amount	Variety	Cost	Type	AA	Use	Time	IBU	Bill %
2.50 oz	Cascade2.5 oz Cascade Hops		Pellet	7	Boil	90 min	40.84	100%
2.50 oz / $ 0.00

Show Summary View

Amount	Variety	Cost	IBU	Bill %
2.50 oz	Cascade (Pellet)		40.84	100%
2.50 oz / $ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
3 gal	Strike	140 °F	124 °F	25 min
	Temperature	124 °F	156 °F	75 min
5 gal	Batch Sparge	70 °F	170 °F	15 min

Other Ingredients

Amount	Name	Type	Use	Time
0.50 tsp	Whirlfloc	Water Agt	Boil	15 min.
0.50 tsp	Yeast Nutrient	Other	Boil	5 min.
6 g	Calcium Chloride (anhydrous)	Water Agt	Mash	1 hr.
1.50 g	Epsom Salt	Water Agt	Mash	1 hr.
2 g	Gypsum	Water Agt	Mash	1 hr.
4 g	Baking Soda	Water Agt	Mash	1 hr.

Yeast

Omega Yeast Labs - British Ale VIII OYL-016

Amount:	1 Each	Cost:
Attenuation (avg):	69%	Flocculation:	Very High
Optimum Temp:	64 - 72 °F	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 111 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 1.9 Volumes

Target Water Profile

London (Porter, dark ales)

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
100	5	35	60	50	265
Mash Chemistry and Brewing Water Calculator

Last Updated and Sharing

Views

Brews

Public: Yup, Shared
Last Updated: 2026-03-13 02:34 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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