Kolsch Brewday and Recipe

Brewed a Kolsch on Saturday, once again picking the hottest day of the year to brew.  It was pretty miserable, but I’m optimistic about the beer.

After reading a bunch of literature on the style, I decided to to a 100% German Pils malt grain bill.  I have seen that a lot of folks use vienna, and some even some wheat, but I wanted to see how it would taste the way that most of the German brewhouses brew it.

I also decided on a small late hop addition, for just a hint of Hallertau Mittlefreu flavor.

The gravity came out 3 points low,  with 75% efficiency…not real sure what happened here, I was expecting 80% or more.

For yeast, I was lucky enough to get a fresh bit of slurry from O’Fallon Brewery.

Here’s the recipe and some pics.  I’ll post a follow-up with impressions when it is done. As always, Tinseth IBU formula, 80% efficiency.  I am fermenting at 60 degrees F.  The batch was 10 gallons.

Kolsch 2
Kolsch

Type: All Grain

Date: 6/27/2009

Batch Size: 10.00 gal

Brewer: Dave Blue
Boil Size: 13.31 gal Asst Brewer:
Boil Time: 90 min Equipment: 20 gallon brewpot and Igloo Cooler (12 gal)
Taste Rating(out of 50): 35.0 Brewhouse Efficiency: 80.00
Taste Notes:

Ingredients

Amount Item Type % or IBU
15.75 lb Pilsner (2 Row) Ger (2.0 SRM) Grain 100.00 %
3.10 oz Hallertauer Mittelfrueh [4.00 %] (60 min) Hops 24.0 IBU
0.60 oz Hallertauer Mittelfrueh [4.00 %] (20 min) Hops 2.8 IBU
0.50 tsp Irish Moss (Boil 10.0 min) Misc
1 Pkgs German Ale/Kolsch (White Labs #WLP029) Yeast-Ale

Beer Profile

Est Original Gravity: 1.047 SG

Measured Original Gravity: 1.044 SG
Est Final Gravity: 1.011 SG Measured Final Gravity:
Estimated Alcohol by Vol: 4.64 % Actual Alcohol by Vol:
Bitterness: 26.8 IBU Calories:
Est Color: 3.3 SRM Color:

Color

Mash Profile

Mash Name: Single Infusion, Light Body, No Mash Out Total Grain Weight: 15.75 lb
Sparge Water: 10.28 gal Grain Temperature: 78.0 F
Sparge Temperature: 168.0 F TunTemperature: 72.0 F
Adjust Temp for Equipment: FALSE Mash PH: 5.4 PH
Single Infusion, Light Body, No Mash Out
Step Time Name Description Step Temp
90 min Mash In Add 19.69 qt of water at 159.3 F 149.0 F
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~ by kungfool on June 28, 2009.

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