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John Palmer Porter

Method: All Grain
Style: Robust Porter
Boil Time: 60 min
Batch Size: 37 liters (fermentor volume)
Pre Boil Size: 42.68 liters
Post Boil Size: 37 liters
Pre Boil Gravity: 1.044 (recipe based estimate)
Post Boil Gravity: 1.051 (recipe based estimate)
Efficiency: 70% (brew house)
Calories: 168 calories (Per 12ml)
Carbs: 16.9 g (Per 12ml)

Created: Sunday November 30th 2025

Original Gravity:

1.051

Final Gravity:

1.012

ABV (standard):

5.2%

IBU (tinseth):

0.0

SRM (morey):

37.5

Mash pH

n/a

Cost £

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
6.50 kg	Simpsons - Best Pale Ale6.5 kg Best Pale Ale	37.5	2	73.4%
0.70 kg	Crisp Malting - Caramalt0.7 kg Caramalt	37	12	7.9%
0.70 kg	Crisp Malting - Brown Malt0.7 kg Brown Malt	32.7	65	7.9%
0.70 kg	Crisp Malting - Chocolate Malt0.7 kg Chocolate Malt	32.66	450	7.9%
0.25 kg	Weyermann - Carafa Special Type II0.25 kg Carafa Special Type II	29.9	425	2.8%
8.85 kg / £ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
23.84 L		Strike	74 °C	65 °C	60 min
Starting Mash Thickness: 2.7 L/kg Starting Grain Temp: 9 °C

Priming

CO₂ Level: 1.9 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

OG 1.053

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2025-12-03 09:52 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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