Stoopsitters Brewing BrewBlog > BrewBlogs > Maibock [Maibock/Helles Bock]

BrewBlog: Maibock

Specifics

Style:

Maibock/Helles Bock — BJCP Style Information

Category:	Bock
Number:	05A

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.

Brewer:

Dustin Zastera

Brew Date:

January 13, 2013

Yield:

5 gallons

Color (SRM/EBC):

5.6/11

Bitterness (Calc):

29.4 IBU (Tinseth)

BU/GU:

0.43

Calories:

223 (12 ounces)

ABV:

7.2%

ABW:

5.6%

Batch No:	92
OG:	1.068
OG (Plato):	16.6° P
Target OG:	1.062
FG:	1.014
FG (Plato):	3.57° P
Target FG:	1.015
Real Extract:	5.93° P
App. Atten.:	78.5%
Real Atten.:	64.3%

General Information

Method:	All Grain

Method:

All Grain

Fermented on yeast cake from batch 91.

Into the primary at 56F after a far-too-long cool down. Ferementation proceeding nicely at 60F and 9 hours. Fermentation performed at an indicated 62F. Krausen fell on day 7 after a vigorous fermentation.

Scale Recipe

Enter desired final yield (volume):

gallons

Malts and Grains

8.00 pounds

Rahr Pilsen Malt

Color (L):	1-2 °L
Info/Use:	Light color, malty flavor. For pilsners, lagers.

66.7% of grist

4.00 pounds

German Light Munich Malt

Color (L):	5-6 °L
Info/Use:	For a malty, nutty flavor. Lagers, Oktoberfests and bock beer.

33.3% of grist

12.00 pounds

Total Grain Weight (Water Amounts

Water Amounts

Target Final Boil Volume:	5 gallons
Evaporation Rate:	0.78 gallons per hour
Boil Time:	60 minutes
Runoff Volume Needed:	6 gallons	5 gallons (final boil volume) ÷ 0.96 (cooling) + 0.8 gallons (boil evaporation)
Grain Amount:	12 pounds
Grain Absorbtion:	2.6 gallons
Total Water Needed:	9 gallons	6 gallons (runoff) + 2.6 gallons (grain absorbtion) + .5 gallons (equip. loss)
Mash Water Needed:	4 gallons	based on 1.33 quarts per pound of grain
Sparge Water Needed:	5.1 gallons	9 gallons (total water) – 4 gallons (mash water)

)

100% of grist

Non-Fermentables

1 tablet	Whirlfloc @ 15 minutes
1/2 tsp	Yeast Nutrient @ 15 minutes

Hops

1.20 ounces

Perle

Region:	Germany, United States
AAU Range:	7 - 9%
Notes:	Pleasant aroma, slightly spicy, almost minty bittering hop.
Typical Use:	Bittering.
Substitution:	Hallertauer Mittelfrueh, NZ Hallertau Aroma
Example:	Lager, Pale Ale, Porter; Sierra Nevada Pale Ale, Summerfest, and Pale Bock

7.8% Pellets @ 60 minutes
Type: Bittering
Use: Boil

9.4 AAUs

1.20 ounces

Mount Hood

Region:	United States
AAU Range:	3 - 8%
Notes:	Mild, clean aroma.
Typical Use:	Aroma, finishing.
Substitution:	Hallertauer Mittelfrueh, Hallertauer Hersbrucker, Liberty, Tettnang
Example:	Lager, Pilsner, Bock, Wheat; Anderson Valley High Rollers Wheat Beer, Portland Ale

1.5% Leaf @ 3 minutes
Type: Aroma
Use: Aroma

1.8 AAUs

2.40 ounces

Total Hop Weight

11.2 AAUs

Boil

Total Boil Time:	60 minutes

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

Equipment Profile

Red rectangular cooler

Batch Size:	5 gallons	Boil Volume:	7 gallons
Evaporation Rate:	9% per hour	Mash Tun Dead Space:	0 gallons
Efficiency:	80%	Mash Tun Weight:	10 pounds
Hop Utilization:	100%	Mash Tun Volume:	10 gallons
Loss:	.5 gallons	Mash Tun Specific Heat:	.3 Cal/gram per °C
Notes:	Suitable for larger batches, up to 25 pounds of grain in a thick mash.

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.

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.

Tasting Reviews

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1 Review

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	45-50 = Outstanding		30-37 = Very Good		14-20 = Fair
	38-44 = Excellent		21-29 = Good		00-13 = Problematic

Review by

Aroma:	/ 12
Appearance:	/ 3
Flavor:	/ 20
Mouthfeel:	/ 5
Overall Impression:	/ 10
Cumulative Score:	0 / 50	Problematic

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