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Christmas Porter 25

Method: All Grain
Style: Robust Porter
Boil Time: 60 min
Batch Size: 18 liters (fermentor volume)
Pre Boil Size: 21 liters
Pre Boil Gravity: 1.058 (recipe based estimate)
Post Boil Gravity: 1.068 (recipe based estimate)
Efficiency: 75% (brew house)
Source: Robert James
Calories: 317 calories (Per .5L)
Carbs: 31.7 g (Per .5L)

Created: Saturday October 25th 2025

Original Gravity:

1.068

Final Gravity:

1.016

ABV (standard):

6.8%

IBU (tinseth):

32.7

SRM (morey):

45.5

Mash pH

n/a

Cost £

6.92

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Fermentables

Amount	Fermentable	Cost	PPG	°L	Bill %
4 kg	Simpsons - Finest Pale Ale Golden Promise4 kg Finest Pale Ale Golden Promise	£ 1.73 / kg £ 6.92	37	2.4	74.1%
0.50 kg	Simpsons - Munich Malt0.5 kg Munich Malt		36.8	8	9.3%
0.40 kg	Crisp Malting - Chocolate Malt0.4 kg Chocolate Malt		32.66	450	7.4%
0.10 kg	Crisp Malting - Black0.1 kg Black		34.5	600	1.9%
0.10 kg	Crisp Malting - Black0.1 kg Black		34.5	600	1.9%
0.30 kg	Flaked Oats0.3 kg Flaked Oats		33	2.2	5.6%
5.40 kg / £ 6.92

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
30 g	Northern Brewer30 g Northern Brewer Hops	Pellet	7.8	Boil	60 min	30.56	60%
10 g	Tettnanger10 g Tettnanger Hops	Pellet	4.5	Boil	10 min	2.13	20%
10 g	Tettnanger10 g Tettnanger Hops	Pellet	4.5	Boil	0 min		20%
50 g / £ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
30 g	Northern Brewer (Pellet) 30 g Northern Brewer (Pellet) Hops	30.56	60%
20 g	Tettnanger (Pellet) 20 g Tettnanger (Pellet) Hops	2.13	40%
50 g / £ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
17.5 L	Infusion	67 °C	67 °C	60 min
9 L	Fly Sparge	75 °C	75 °C	--
Starting Mash Thickness: 3 L/kg

Other Ingredients

Amount	Name	Type	Use	Time
1 each	Protafloc	Water Agt	Boil	0 min.
225 ml	Cold brewed coffee	Flavor	Kegging	0 min.
150 g	Cocao Nibs	Flavor	Secondary	10 days

Yeast

Fermentis - Safale - English Ale Yeast S-04

Amount:	1 Each	Cost:
Attenuation (avg):	75%	Flocculation:	High
Optimum Temp:	12 - 25 °C	Starter:	No
Fermentation Temp:	20 °C	Pitch Rate:	0.35 (M cells / ml / ° P) 105 B cells required

£ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

Method: co2 Amount: 0.3 bar Temp: 4 °C CO₂ Level: 1.8 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

Last Updated and Sharing

Views

Brews

Public: Yup, Shared
Last Updated: 2025-10-26 11:50 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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