Mac Dubh Stout Beer Recipe | Extract Dry Stout | Brewer's Friend
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Mac Dubh Stout

13829 calories 1681.6 g 20 qt
Beer Stats
Method: Extract
Style: Dry Stout
Boil Time: 75 min
Batch Size: 6.5 gallons (fermentor volume)
Pre Boil Size: 7.5 gallons
Pre Boil Gravity: 1.063 (recipe based estimate)
Post Boil Gravity: 1.077 (recipe based estimate)
Efficiency: 70% (steeping grains only)
Source: DL Boatman
Hop Utilization: 91%
Calories: 13829 calories (Per 20qt)
Carbs: 1681.6 g (Per 20qt)
Created: Thursday December 5th 2024
1.077
1.026
6.8%
42.7
33.2
n/a
108.88
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
9 lb Dry Malt Extract - Amber9 lb Dry Malt Extract - Amber 10.45 / lb
94.05
42 10 67.9%
6 oz Lactose (Milk Sugar)6 oz Lactose (Milk Sugar) - (late boil kettle addition) 41 1 2.8%
6 oz Maltodextrin6 oz Maltodextrin - (late boil kettle addition) 39 0 2.8%
16 oz Honey16 oz Honey 35 2 7.5%
172 oz / 94.05
Steeping Grains
Amount Fermentable Cost PPG °L Bill %
1 lb Crisp Malting - Chevallier Heritage Malt1 lb Chevallier Heritage Malt 5.39 / lb
5.39
36.3 3 7.5%
12 oz Crisp Malting - Pale Chocolate12 oz Pale Chocolate 6.29 / lb
4.72
32.7 220 5.7%
12 oz Crisp Malting - Chocolate Malt12 oz Chocolate Malt 6.29 / lb
4.72
32.66 450 5.7%
14.83
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1.50 oz Challenger1.5 oz Challenger Hops Pellet 8.5 Boil 45 min 27.7 50%
1.50 oz Challenger1.5 oz Challenger Hops Pellet 8.5 Boil 15 min 14.97 50%
3 oz / 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
1 tsp Calcium Chloride (dihydrate) Water Agt Mash 75 min.
3 g Yeast Nutrient Other Mash 10 min.
1 each Whirlfloc tablet Water Agt Mash 5 min.
 
Yeast
Wyeast - Scottish Ale 1728
Amount:
2 Each
Cost:
Attenuation (avg):
71%
Flocculation:
High
Optimum Temp:
55 - 75 °F
Starter:
No
Fermentation Temp:
68 °F
Pitch Rate:
0.35 (M cells / ml / ° P) 161 B cells required
0.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: co2       Amount: 2.28 psi       Temp: 38 °F       CO2 Level: 1.65 Volumes
 
Target Water Profile
Dublin (Dry Stout)
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
110 4 12 19 53 280
 
Notes
  1. Add gypsum to 5 gals water in brew kettle, stir to dissolve.
  2. Heat water to 155-160 degrees.
  3. Place steeping grains in nylon bags and steep them for 30 minutes. Remove steeping grains from kettle, letting liquids naturally drain from grain bags. Do not squeeze nylon bags to extract more liquid.
  4. Add DME to wort, stirring briskly to dissolve DME.
  5. Add water to wort to bring quantity up to 7.5 gals, bring wort to boil.
  6. After 30 minutes boil, add initial hops to wort.
  7. After 45 minutes, add maltodextrin, lactose, and honey to wort..
  8. After 60 minutes boil, add remaining hops to wort.
  9. After 65 minutes boil, add yeast nutrients to wort.
  10. After 70 minutes boil, add Whirlfloc tablet to wort.
  11. After 75 minutes boil, turn off heat and let wort rest for 15 minutes..
  12. Add distilled water to wort to bring quantity up to 7.5 gals.
  13. Cool wort, transfer to fermenter, aerate, and pitch yeast.
  14. Maintain 65-70 degree fermenter temperature during fermentation.
  15. Transfer to keg when fermentation has finished.
  16. Refrigerate keg for 24 hours, force carbonate at that time..
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  • Public: Yup, Shared
  • Last Updated: 2025-11-08 02:58 UTC
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