Old 20 Beer Recipe | BIAB American Lager | Brewer's Friend
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Old 20

149 calories 12.3 g 12 oz
Beer Stats
Method: BIAB
Style: American Lager
Boil Time: 80 min
Batch Size: 11 gallons (fermentor volume)
Pre Boil Size: 13.78 gallons
Post Boil Size: 12 gallons
Pre Boil Gravity: 1.040 (recipe based estimate)
Post Boil Gravity: 1.046 (recipe based estimate)
Efficiency: 68% (brew house)
Calories: 149 calories (Per 12oz)
Carbs: 12.3 g (Per 12oz)
Created: Monday January 16th 2023
1.046
1.007
5.0%
16.1
2.9
5.5
64.39
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
16 lb Rahr - North Star Pils16 lb North Star Pils 1.99 / lb
31.84
36.3 1.7 80%
4 lb Flaked Corn4 lb Flaked Corn 2.15 / lb
8.60
40 0.5 20%
20 lbs / 40.44
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1 oz Liberty1 oz Liberty Hops 2.15 / oz
2.15
Pellet 4 Boil 80 min 7.98 33.3%
1 oz Liberty1 oz Liberty Hops 2.15 / oz
2.15
Pellet 4 Boil 40 min 6.64 33.3%
1 oz Liberty1 oz Liberty Hops 2.15 / oz
2.15
Pellet 4 Boil 5 min 1.51 33.3%
3 oz / 6.45
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
15.81 gal Protien Rest Strike 126 °F 126 °F 15 min
Beta Sac Rest Infusion 130 °F 145 °F 60 min
Alfa Sac Rest 145 °F 155 °F 20 min
Mash Out Infusion 155 °F 170 °F 15 min
 
Other Ingredients
Amount Name Cost Type Use Time
7 ml Lactic acid Water Agt Mash 1 hr.
 
Yeast
Fermentis - Saflager - German Lager Yeast W-34/70
Amount:
2 Each
Cost:
8.75 / each
17.50
Attenuation (avg):
83%
Flocculation:
High
Optimum Temp:
48 - 72 °F
Starter:
No
Fermentation Temp:
-
Pitch Rate:
1.5 (M cells / ml / ° P) 714 B cells required
17.50 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.65 Volumes
 
Target Water Profile
Reverse Osmosis
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
0 0 0 0 0 0
Mash Chemistry and Brewing Water Calculator
"Old 20" American Lager beer recipe by BilltownBrewingCo. BIAB, ABV 5.04%, IBU 16.14, SRM 2.92, Fermentables: (North Star Pils, Flaked Corn) Hops: (Liberty) Other: (Lactic acid)
Recipe Picture
Last Updated and Sharing
 
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  • Public: Yup, Shared
  • Last Updated: 2024-03-04 15:57 UTC
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