Jack-o'-Lantern Beer Recipe | BIAB Belgian Dubbel | Brewer's Friend
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Jack-o'-Lantern

242 calories 17.8 g 500 ml
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Beer Stats
Method: BIAB
Style: Belgian Dubbel
Boil Time: 60 min
Batch Size: 20 liters (fermentor volume)
Pre Boil Size: 24 liters
Pre Boil Gravity: 1.039 (recipe based estimate)
Post Boil Gravity: 1.053 (recipe based estimate)
Efficiency: 69% (brew house)
Hop Utilization: 99%
Calories: 242 calories (Per 500ml)
Carbs: 17.8 g (Per 500ml)
Created: Tuesday September 23rd 2025
1.053
1.006
6.1%
17.4
22.4
5.5
6.89
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Fermentables
Amount Fermentable Cost PPG °L Bill %
1.50 kg Viking - Pilsner Malt1.5 kg Pilsner Malt 2.30 € / kg
3.45 € 		37 1.9 22.4%
1.50 kg Weyermann - Munich Type I1.5 kg Munich Type I 38 6 22.4%
0.80 kg Viking - Pilsner Malt0.8 kg Pilsner Malt 2.30 € / kg
1.84 € 		37 1.9 11.9%
0.50 kg Weyermann - Oak Smoked Wheat Malt0.5 kg Oak Smoked Wheat Malt 3.20 € / kg
1.60 € 		38 2 7.5%
2 kg Pumpkin (fresh)2 kg Pumpkin (fresh) - (late fermenter addition) 1 0 29.9%
0.40 kg Belgian Candi Sugar - Dark (275L)0.4 kg Belgian Candi Sugar - Dark (275L) - (late boil kettle addition) 38 275 6%
6.70 kg / 6.89 €
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
15 g Opal15 g Opal Hops Pellet 5.6 Boil 90 min 12.5 37.5%
10 g Opal10 g Opal Hops Pellet 5.6 Boil 10 min 2.82 25%
15 g Opal15 g Opal Hops Pellet 5.6 Whirlpool 10 min 2.1 37.5%
40 g / 0.00 €
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
25 L Strike 63 °C 63 °C 45 min
Temperature 72 °C 72 °C 25 min
5 L Sparge 78 °C 78 °C --
 
Other Ingredients
Amount Name Cost Type Use Time
2.50 g Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
3 g Gypsum Water Agt Mash 1 hr.
0.90 g Salt Water Agt Mash 1 hr.
3.70 ml Phosphoric acid Water Agt Mash 1 hr.
0.10 ml Phosphoric acid Water Agt Sparge 1 hr.
 
Yeast
Mangrove Jack - Belgian Tripel M31
Amount:
1 Each
Cost:
Attenuation (avg):
85%
Flocculation:
Medium
Optimum Temp:
18 - 28 °C
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 92 B cells required
0.00 € Yeast Pitch Rate and Starter Calculator
Priming
Method: co2       Amount: 0.45 bar       Temp: 1.5 °C       CO2 Level: 2.2 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
80 5 25 75 80 100
Mash Chemistry and Brewing Water Calculator
"Jack-o'-Lantern" Belgian Dubbel beer recipe by White OWL Brewing. BIAB, ABV 6.08%, IBU 17.42, SRM 22.4, Fermentables: ( Pilsner Malt, Munich Type I, Oak Smoked Wheat Malt, Pumpkin (fresh), Belgian Candi Sugar - Dark (275L)) Hops: (Opal) Other: (Calcium Chloride (dihydrate), Gypsum, Salt, Phosphoric acid)
Recipe Picture
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Recipe QR Code
  • Public: Yup, Shared
  • Last Updated: 2025-09-26 11:29 UTC
NEW Water Requirements:
Jack-o'-Lantern
Equipment Profile Used

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Jack-o'-Lantern
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Recipe Cost € (EUR)
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.
Gallons
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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