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Maibock 2 - Hell is Back

From the BrewBlog of Stoopsitters Brewing – Hastings, Minnesota USA
Printed April 28, 2024

Specifics
Style: Maibock/Helles Bock
Brewer: Dustin Zastera
Brew Date: March 3, 2012
Yield: 5 gallons
Color (SRM/EBC): 5.6/11
Bitterness (Calc): 30.1 IBU (Tinseth)
BU/GU: 0.44
Calories: 224 (12 ounces)
ABV: 7.1%
ABW: 5.5%
Batch No: 81
OG: 1.068
OG (Plato): 16.6° P
Target OG: 1.062
FG: 1.015
FG (Plato): 3.82° P
Target FG: 1.015
Real Extract: 6.13° P
App. Atten.: 77%
Real Atten.: 63%
BJCP Style Info: Maibock/Helles Bock
O.G.: 1.064 - 1.072
F.G.: 1.011 - 1.018
ABV: 6.3 - 7.4%
Bitterness: 23 - 35 IBUs
Color: 6 - 11 SRM
Info: A relatively pale, strong, malty lager beer. Designed to walk a fine line between blandness and too much color. Hop character is generally more apparent than in other bocks.

Commercial Examples: Ayinger Maibock, Mahr’s Bock, Hacker-Pschorr Hubertus Bock, Capital Maibock, Einbecker Mai-Urbock, Hofbräu Maibock, Victory St. Boisterous, Gordon Biersch Blonde Bock, Smuttynose Maibock.

General Information
Method: All Grain

Initial reading of 5.1 gallons at 17.2B (1.068).  Expected final gravity of 1.016 (9.4B).

Pitched the 2112 left over from batch 77, California Common.

Some signs of fermentation at 24 hours, but no krausen until 40 hours.  A bit slower than I would have expected.

Blowout sometime during day 3.

Moved from 56F to 64F on day 8.

Malts and Grains
8.00 pounds Rahr Pilsen Malt 66.7% of grist
4.00 pounds German Light Munich Malt 33.3% of grist
12.00 pounds Total Grain Weight 100% of grist
Non-Fermentables
1 tablet Whirlfloc @ 15 minutes  
1/2 tsp Yeast Nutrient @ 15 minutes  
Hops
1.00 ounces Perle 9.3% Pellets @ 60 minutes
Type: Bittering
Use: Boil
9.3 AAUs
0.50 ounces Hallertauer Gold 1.5% Pellets @ 15 minutes
Type: Flavor
Use: Aroma
0.8 AAUs
1.50 ounces Total Hop Weight 10.1 AAUs
Boil
Total Boil Time: 60 minutes
Yeast
Name: California Lager
Manufacturer: Wyeast
Product ID: 2112
Type: Lager
Flocculation: High
Attenuation: 69%
Temperature Range: 58–68°F
Amount: 1500 ml
Water Profile

Hastings, Minnesota

Calicum: 55 ppm
Bicarbonate: 196 ppm
Sulfate: 7.9 ppm
Chloride: 8.9 ppm
Sodium: 3 ppm
Magnesium: 24 ppm
PH: 7.4%
Notes:

Taken from:
"Ground Water Quality in Cottage Grove, MN, June 2000"

Prepared by GWMAP

Procedure

Mash in with 3.75 gallons at 167F to hit a mash temperature of 152F.  Rest for 30 minutes, then pull 5 quarts to decoct.  Boil the decoction for 40 minutes and return to the main mash to hit a second rest temperature of 166F.  Rest for an additional 30 minutes.  Mash out with 3 quarts @boil to high 172F.  Stir and drain the tun to recover ~3 gallons.  Sparge with an additional 3.5 gallons at 172F.

Add hops according the schedule, adding whilfloc and nutrient with the last hop addition.

Maibock 2 - Hell is Back
Date Brewed:  
Brewer/Assistant:  
Brew Day Data
  Target Actual
Strike Water Amount: 4  
Strike Water Temperature:    
Mash Temperature:    
Mash Time:    
Sparge Water Amount: 5.1  
Sparge Water Temperature:    
Pre-Boil Gravity:    
Pre-Boil Amount: 6  
Post-Boil Amount: 5  
Boil Time: 60  
Original Gravity: 1.068 / 16.6° P  
     
     
     
     
Brew Day Notes
 

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