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Porter

307 calories 31.2 g 568 ml
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Beer Stats
Method: BIAB
Style: American Porter
Boil Time: 30 min
Batch Size: 4.5 liters (fermentor volume)
Pre Boil Size: 9.274 liters
Post Boil Size: 6.722 liters
Pre Boil Gravity: 1.042 (recipe based estimate)
Post Boil Gravity: 1.058 (recipe based estimate)
Efficiency: 60% (brew house)
Source: Bobbleballs
Hop Utilization: 97%
Calories: 307 calories (Per 568ml)
Carbs: 31.2 g (Per 568ml)
Created: Saturday March 7th 2026
1.058
1.014
5.8%
36.3
42.4
5.4
n/a
 
Fermentables
Amount Fermentable Cost PPG EBC Bill %
800 g Extra Pale Malt800 g Extra Pale Malt 33 3.31 52.9%
522 g Munich522 g Munich 37 14.51 34.5%
100 g Warminster Maltings - Flaked Malted Oats100 g Flaked Malted Oats 38 4 6.6%
40 g Special B40 g Special B 34 305.39 2.6%
50 g Weyermann - Carafa Special Type 1 50 g Carafa Special Type 1 29.9 905.81 3.3%
1,512 g / £ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
3.50 g centennial cryo 3.5 g centennial cryo Hops Pellet 18.5 Boil 30 min 29.19 29.7%
4.80 g Fuggles4.8 g Fuggles Hops Pellet 5 Boil 5 min 2.81 40.7%
3.50 g centennial cryo 3.5 g centennial cryo Hops Pellet 18.5 Whirlpool at 80 °C 15 min 4.32 29.7%
11.80 g / £ 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
2.24 ml Lactic acid Water Agt Mash 1 hr.
Priming
CO2 Level: 2.75 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
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
10.24 L Strike 68 °C 67 °C 60 min
Quick Water Requirements
Water Liters
Strike water volume (equipment estimates 9.8 L) 11.7
Mash volume with grains (equipment estimates 10.8 L) 12.7
Grain absorption losses -1.5
Mash Lauter Tun losses -0.9
Pre boil volume (equipment estimates 7.4 L) 9.3
Boil off losses -2.9
Hops absorption losses (first wort, boil, aroma) -0
Post boil Volume (equipment estimates 4.5 L) 6.7
Hops absorption losses (whirlpool, hop stand) -0
WARNING: Exceeded batch size - reduce boil size  
Volume into fermentor (equipment estimates 6.7 L) 4.5
Total: 11.7  
Equipment Profile Used: System Default
"Porter" American Porter beer recipe by Bobbleballs. BIAB, ABV 5.81%, IBU 36.31, SRM 42.37, Fermentables: (Extra Pale Malt, Munich, Flaked Malted Oats, Special B, Carafa Special Type 1 ) Hops: (centennial cryo , Fuggles) Other: (Lactic acid)
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  • Last Updated: 2026-03-07 14:06 UTC