Homebrew RoggenBock

So a while back I tried to do a triple decoction Roggenbock. The decoction did not go well and my brewday ended up being around little over 12 hours. Here is just a short list of issues that I had during that day:

  • First decoction went well, but the next 2 would not come up to temperature. Ended up decocting about 2-3 more times then necessary.
  • The second problem I ran into was testing for conversion. Every test turned up positive for starch. After an extra hour of mash time I just gave up and started the sparge.
  • During the sparge, I got my first stuck sparge even though I used a decent amount rice hulls.

Fortunately, the boil, fermentation, and bottling went by without problems. Now I am breaking one out every so often to try them. First thing you notice cracking it open is the aroma. This beer has a huge banana aroma that dominates with a hint of rye behind it and the color is a rich mahogany. The flavor, like the aroma, is yeast dominated with a hint of rye spice and maltly richness. Carbonation is very light (needs some more time in the bottle), and the mouth feel is very thick, yet finishes smooth and dry.

Once this carbonates up it should a pretty good beer, though I am not sure that I really want to go through the trouble of the decoction mash again. Recipe after the picture.



Type: All Grain

Date: 1/4/2010

Batch Size: 3.00 gal

Brewer: Ryan Murphy
Boil Size: 3.75 gal Asst Brewer:
Boil Time: 60 min Equipment: Stove Top
Taste Rating(out of 50): 35.0 Brewhouse Efficiency: 70.00
Taste Notes:


Amount Item Type % or IBU
0.25 lb Rice Hulls (0.0 SRM) Adjunct 2.50 %
4.00 lb Rye Malt (4.7 SRM) Grain 40.00 %
3.50 lb Munich Malt (9.0 SRM) Grain 35.00 %
1.00 lb Pilsner (2 Row) Ger (1.0 SRM) Grain 10.00 %
1.00 lb Rye, Flaked (2.0 SRM) Grain 10.00 %
0.25 lb Chocolate Rye Malt (250.0 SRM) Grain 2.50 %
1.00 oz Tettnang [4.70 %] (45 min) Hops 22.5 IBU
1 Pkgs Hefeweizen Ale (White Labs #WLP300) [Starter 1200 ml] Yeast-Wheat

Beer Profile

Est Original Gravity: 1.076 SG

Measured Original Gravity: 1.069 SG
Est Final Gravity: 1.019 SG Measured Final Gravity: 1.011 SG
Estimated Alcohol by Vol: 7.50 % Actual Alcohol by Vol: 7.58 %
Bitterness: 22.5 IBU Calories: 309 cal/pint
Est Color: 18.3 SRM

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