Biker Bobs Boston Lager Beer Recipe | All Grain Pre-Prohibition Lager | Brewer's Friend
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Biker Bobs Boston Lager

180 calories 16 g 12 oz
Beer Stats
Method: All Grain
Style: Pre-Prohibition Lager
Boil Time: 60 min
Batch Size: 5.8 gallons (fermentor volume)
Pre Boil Size: 6.75 gallons
Pre Boil Gravity: 1.047 (recipe based estimate)
Post Boil Gravity: 1.055 (recipe based estimate)
Efficiency: 82% (brew house)
Source: Biker Bob
Calories: 180 calories (Per 12oz)
Carbs: 16 g (Per 12oz)
Created: Friday December 12th 2025
1.055
1.010
5.9%
23.6
5.6
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
10 lb 2-Row - US10 lb 2-Row - US 36.8 1 95.2%
8 oz Caramel/Crystal 60 - US8 oz Caramel/Crystal 60 - US 35.8 60 4.8%
10.50 lbs / 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
0.60 oz 4 HBU0.6 oz 4 HBU Hops Pellet 8.7 Boil 60 min 17.59 28.6%
0.50 oz Charles Faram - Tettnang0.5 oz Tettnang Hops Pellet 2.7 Boil 5 min 0.91 23.8%
0.25 oz Hallertau Mittelfruh0.25 oz Hallertau Mittelfruh Hops Pellet 4.1 Dry Hop 6 days 11.9%
0.75 oz Hallertau Mittelfruh0.75 oz Hallertau Mittelfruh Hops Pellet 4.1 Boil 15 min 5.14 35.7%
2.10 oz / 0.00
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
4 gal Protein Rest Temperature 135 °F 130 °F 60 min
1 gal Saccharification Rest Infusion 200 °F 150 °F 30 min
0.5 gal Saccharification Rest Infusion -- 153 °F 20 min
0.5 qt Saccharification Rest Infusion 200 °F 156 °F 20 min
2 gal Mash-Out Infusion 200 °F 170 °F 10 min
4 gal Sparse Sparge 170 °F 170 °F 60 min
Starting Mash Thickness: 1.75 qt/lb
 
Other Ingredients
Amount Name Cost Type Use Time
1.10 qt Whirlfloc Other Sparge 0 min.
 
Yeast
White Labs - German Lager Yeast WLP830
Amount:
1 Each
Cost:
Attenuation (custom):
80%
Flocculation:
Medium
Optimum Temp:
50 - 55 °F
Starter:
Yes
Fermentation Temp:
53 °F
Pitch Rate:
1.5 (M cells / ml / ° P) 447 B cells required
0.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: co2       Amount: 12 psi       Temp: 34 °F       CO2 Level: 0
 
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
 
Notes

This recipe was exported from https://brewgr.com.

Brewing Instructions:

  1. Ferment at 53 F for 10 days
  2. Raise temp to 68F for 2 days
  3. Crash to 35F for 2-3 weeks
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  • Public: Yup, Shared
  • Last Updated: 2025-12-15 02:57 UTC
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