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Gordon Biersch Dunkles clone

This is a clone of less well known Gordon Biersch Dunkles. I have made this as close to the original as I could, but most homebrewers aren’t going to do all the required decoction steps; even if they have the equipment. Some things are much easier on a larger scale. In case you do want to follow the complicated mash procedure, I will detail it below. For yeast, Weihenstephaner 34/70 lager yeast is traditionally used, and is available dry from DCL/Fermentis as W-34/70. You can also get any neutral German lager yeast.

This is a clone of less well known Gordon Biersch Dunkles. I have made this as close to the original as I could, but most homebrewers aren’t going to do all the required decoction steps; even if they have the equipment. Some things are much easier on a larger scale. In case you do want to follow the complicated mash procedure, I will detail it below.

For yeast, Weihenstephaner 34/70 lager yeast is traditionally used, and is available dry from DCL/Fermentis as W-34/70. You can also get any neutral German lager yeast.

This beer is normally served unfiltered, so as a homebrewer, you won’t have to do any complex filtering.

Make sure you do a diacytl rest,  and slowly drop the temperature. Lager the beer for at least four weeks for best flavor and stability.

Enhanced Instructions

For those of you crazy enough to do a decoction mash, here are the steps.

  1. Mash in at 100 – 108° F
  2. Raise temperature to 125° F immediately and hold for 10 minutes (protein rest)
  3. Raise to 145° F and hold for 20 minutes (low sugar)
  4. Raise to 155° F and hold for 20 minutes (high sugar)
  5. Raise to 162° F and hold for 30 minutes
  6. Keep 20% of mash and bring to boil while the rest goes into the lauter tun
  7. After boil is complete, transfer the 20% to the lauter tun and add the Carafa (don’t add into original mash)

I told you that was a crazy mash, much easier with pumps and a brew monkey. You will be rewarded though with a much more flavorful beer. Expect a long brewing day (3 – 5 hours just for mashing).

Recipe Details

Batch SizeBoil TimeIBUSRMEst. OGEst. FGABV
5 gal90 min17.4 IBUs16.9 SRM1.052 SG1.012 SG5.3 %

Style Details

NameCat.OG RangeFG RangeIBUSRMCarbABV
Munich Dunkel4 B1.048 - 1.0561.01 - 1.01618 - 2814 - 282.2 - 2.74.5 - 5.6 %

Fermentables

NameAmount%
Munich Malt - 20L8 lbs77.11
Pale Malt (2 Row) US2.31 lbs22.27
Carafa III1.03 oz0.62

Hops

NameAmountTimeUseFormAlpha %
Hallertauer Hersbrucker1.25 oz60 minBoilPellet4

Yeast

NameLabAttenuationTemperature
Saflager Lager (W-34/70)DCL/Fermentis75%48°F - 59°F

Mash

StepTemperatureTime
Protein Rest122°F30 min
Saccharification152°F45 min
Mash Out168°F10 min

Recipe Type

All Grain

Experience Level

Advanced

Submitted by tresero on Thu, 07/12/2012 - 20:41