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Pre-Prohibition Porter

Method: BIAB
Style: Pre-Prohibition Porter
Boil Time: 30 min
Batch Size: 1 gallons (fermentor volume)
Pre Boil Size: 1.4 gallons
Post Boil Size: 1 gallons
Pre Boil Gravity: 1.038 (recipe based estimate)
Post Boil Gravity: 1.053 (recipe based estimate)
Efficiency: 60% (brew house)
Source: https://byo.com/article/style-profile-5/
Hop Utilization: 99%
Calories: 172 calories (Per 12oz)
Carbs: 14.1 g (Per 12oz)

Created: Tuesday October 7th 2025

Original Gravity:

1.053

Final Gravity:

1.008

ABV (standard):

5.8%

IBU (tinseth):

25.1

SRM (morey):

38.0

Mash pH

5.2

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
20.50 oz	US - Pale 2-Row20.5 oz Pale 2-Row	37	1.8	53%
4.25 oz	Munich - Light 10L4.25 oz Munich - Light 10L	33	10	11%
7.75 oz	Flaked Corn7.75 oz Flaked Corn	40	0.5	20%
2.70 oz	Caramel / Crystal 60L2.7 oz Caramel / Crystal 60L	34	60	7%
2.70 oz	German - Carafa II2.7 oz Carafa II	32	425	7%
0.76 oz	United Kingdom - Black Patent0.76 oz Black Patent	27	525	2%
38.66 oz / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
4.50 g	Cluster4.5 g Cluster Hops	Pellet	6.5	Boil	30 min	16.66	50%
4.50 g	Cascade4.5 g Cascade Hops	Pellet	7	Boil	10 min	8.47	50%
9 g / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
4.50 g	Cluster (Pellet) 4.5 g Cluster (Pellet) Hops	16.66	50%
4.50 g	Cascade (Pellet) 4.5 g Cascade (Pellet) Hops	8.47	50%
9 g / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
1.4 gal		Infusion	159 °F	152 °F	30 min

Other Ingredients

Amount	Name	Type	Use	Time
2.81 g	Chalk	Water Agt	Mash	1 hr.
0.94 g	Calcium Chloride (dihydrate)	Water Agt	Mash	1 hr.
0.62 g	Epsom Salt	Water Agt	Mash	1 hr.
0.39 g	Gypsum	Water Agt	Mash	1 hr.
1.11 g	Baking Soda	Water Agt	Mash	1 hr.
3.35 ml	Lactic acid	Water Agt	Mash	10 min.

Yeast

Fermentis - Saflager - German Lager Yeast W-34/70

Amount:	1 Each	Cost:
Attenuation (avg):	83%	Flocculation:	High
Optimum Temp:	48 - 72 °F	Starter:	No
Fermentation Temp:	68 °F	Pitch Rate:	0.35 (M cells / ml / ° P) 17 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.35 Volumes

Target Water Profile

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
150	10	50	75	75	412.7
water is balanced 40 SRM
Mash Chemistry and Brewing Water Calculator

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2025-10-07 23:46 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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