Rock Hoppers Brew Club RHBC Logs 2008-2017 > Logs > Humptoberfest [Oktoberfest/Marzen]

Oktoberfest/Marzen – All Grain GONE

Batch #:

14-2009

Batch Size:

10 gallons

Boil Time:

90 min

Conditioning:

Keg

Brew Date:

July 19, 2009

Tap Date:

September 10, 2009

Statistics

Target OG:

1.056 13.8° P

OG:

1.060 14.7° P

Reading 1:

1.018 4.6° P at 14 days

Target FG:

1.014 3.6° P

FG:

1.018 4.6° P

Real Extract:

6.4° P

Attenuation:

68.7% Apparent – 56.5% Real

Color:

12 SRM

IBU:

26.1 Rager

BU/GU:

0.44

ABV:

5.6%

ABW:

4.4%

Calories:

201 12 oz

Comments

A bit of a rework of the Humptoberfest. Added more Melanoidin malt for a chewier maltiness.

Could not get this one to finish, despite the starter I made. My suspicion is that:

The starter was not large enough: need to "feed" the starter more than once during propagation.
The yeast count in the package was very low, so the starter I made didn't generate enough healthy, viable yeast.

The resulting beer is clean, but is on the sweet side. I'm considering making a 5 gallon batch with a very clean and very attenuative lager yeast to blend with the 10 gallon batch I have of this.

Tried to innoculate again after the FG stalled, but nothing happened.

Next time, I'll make a HUGE starter.

Malts and Grains

Amount	Malt/Grain	% of Grist
7.50 pounds	Belgian Plisen Malt	32.6%
6.00 pounds	German Dark Munich Malt	26.1%
6.00 pounds	American Vienna Malt	26.1%
3.00 pounds	German Melanoidin Malt	13%
0.50 pounds	Crystal Malt 60L	2.2%
23.00 pounds	Total Grain Weight	100%

Non-Fermentables

Amount	Non-Fermentable	Time
4	Fermcap	60 minutes
1.5	Gypsum (Calcium Sulfate)	60 minutes

Hops

Amount	Hop	Time	Type	Use	Form	AA
0.75 ounces	Magnum	60 min	Bittering	Boil	Pellets	13.1%
2.00 ounces	Tettnanger	30 min	Aroma	Boil	Pellets	2.7%
2.75 ounces	Total Hop Weight

Yeasts

Name	Lab/Manufacturer	Product ID	Amount
Octoberfest Lager	Wyeast	2633	2000 ml

Equipment Profile Converted Keg, 10 Gallon/38 Liter Cooler Mash Tun

Batch Size:

10.00 gallons

Boil Volume:

12.00 gallons

Evaporation Rate:

9.00% per hour

Typical Efficiency:

72%

Hop Utilization:

100%

Mash Tun Volume:

10.00 gallons

Mash Tun Weight:

9.00 pounds

Mash Tun Specific Heat:

0.30 cal/gram per °C

Mash Tun Dead Space:

0.80 gallons

Loss:

1.00 gallons

Notes:

Converted 15.5 gallon/59 liter keg boil kettle for full boil with a 10 gallon/38 liter cooler as a mash/lauter tun.

Mash Profile Single Decoction

Ideal Grain Temp:

72°F

Ideal Tun Temp:

72°F

Ideal Sparge Temp:

168°F

Ideal PH:

5.4

Notes:

Draw a part of the mash, let it rest for at least 10 minutes, and boil.

Mash Steps

#	Name	Type	Time	Temp.	Description
1	Protein Rest	Infusion	35 min.	122°F	Add water at 126 F
2	Saccharification	Decoction	45 min.	155°F	Decoct 44% of mash, rest for at least 10 minutes, and boil
3	Mash Out	Infusion	10 min.	168°F	Heat to 168° F / 75° C for at least 10 minutes

Water Profile Highlands Ranch, Colorado

Calcium:

31.4 ppm

Bicarbonate:

56.9 ppm

Sulfate:

41.1 ppm

Chloride:

0.9 ppm

Sodium:

27.0 ppm

Magnesium:

3.5 ppm

PH:

5.4

Notes:

Filtered through standard charcoal system.

Fermentation and Aging

Primary:

12 days @ 50° F

Secondary:

2 days @ 60° F

Tertiary:

14 days @ 32° F

Age:

28 days @ 52° F

Humptoberfest

Date Brewed:
Brewer/Assistant:

Brew Day Data

	Target	Actual	Notes
Strike Water Amount:	7.6
Strike Water Temperature:
Mash Temperature(s):
Mash Time:
Sparge Water Amount:	8.2
Sparge Water Temperature:
Pre-Boil Gravity:
Pre-Boil Amount:	11
Post-Boil Amount:	10
Boil Time:	90
OG:	1.060 / 14.7° P
Mash PH:
Boil PH:

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Log: Humptoberfest

Oktoberfest/Marzen – All Grain GONE

Statistics

Comments

Malts and Grains

Non-Fermentables

Hops

Yeasts

Equipment Profile Converted Keg, 10 Gallon/38 Liter Cooler Mash Tun

Mash Profile Single Decoction

Mash Steps

Water Profile Highlands Ranch, Colorado

Fermentation and Aging

Humptoberfest

Brew Day Data

Scale Recipe

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