Two Bits Abbey Double
Belgian Dubbel


Type: All Grain

Date: 4/9/2006

Batch Size: 18.93 L

Brewer: Jurgen F. Doreleijers
Boil Size: 21.01 L Asst Brewer:
Boil Time: 60 min Equipment: Brew Pot (6+gal) and Igloo/Gott Cooler (5 Gal)
Taste Rating(out of 50): 0.0 Brewhouse Efficiency: 60.00
Taste Notes: Vague memory of a great tasting beer. My dad might have thought it was too bitter.


Amount Item Type % or IBU
2.72 kg Pale Malt (2 Row) Bel (5.9 EBC) Grain 51.32 %
1.40 kg Munich Malt (17.7 EBC) Grain 26.42 %
0.50 kg Caramel/Crystal Malt - 60L (19.7 EBC) Grain 9.43 %
0.23 kg Aromatic Malt (51.2 EBC) Grain 4.34 %
22.70 gm Challenger [6.90 %] (90 min) Hops 24.4 IBU
5.70 gm Challenger [6.90 %] (Dry Hop 3 days) Hops -
0.45 kg Turbinado (19.7 EBC) Sugar 8.49 %
17.49 L Madison Softened Water
1 Pkgs Trappist High Gravity (Wyeast Labs #3787) Yeast-Wheat


Beer Profile

Est Original Gravity: 1.056 SG

Measured Original Gravity: 1.056 SG
Est Final Gravity: 1.012 SG Measured Final Gravity: 1.012 SG
Estimated Alcohol by Vol: 5.68 % Actual Alcohol by Vol: 5.74 %
Bitterness: 24.4 IBU Calories: 526 cal/l
Est Color: 19.7 EBC Color:

Mash Profile

Mash Name: Single Infusion, Light Body, No Mash Out Total Grain Weight: 4.85 kg
Sparge Water: 14.17 L Grain Temperature: 22.2 C
Sparge Temperature: 75.6 C TunTemperature: 22.2 C
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 12.65 L of water at 69.5 C 63.5 C

Mash Notes: Simple single infusion mash for use with most modern well modified grains (about 95% of the time).

Carbonation and Storage

Carbonation Type: Kegged (Forced CO2) Volumes of CO2: 2.4
Pressure/Weight: 152.2 KPA Carbonation Used: -
Keg/Bottling Temperature: 16.0 C Age for: 21.0 days
Storage Temperature: 20.0 C  


Used 2/3 Reverse Osmosis water (5 gallon) and 1/3 Madison for a total of 28 l which brings the bicarbonates back from 364.0 to 120.

I thought I had the step temp at 70 C but my turkey bash meter is probably off by +4 C. Aimed for 19 but got only 17.5 l in fermentor (before adding starter).

pH dropped from 5.7 to 5.5, 10 and 20 minutes into mashing. It's temparture corrected. The chilled wort pH was still a high 5.6. pH 4.0 calibration solution measured 4.2 so values might be a bit too hi?

Hops were green when frozen back in September (3 months ago). I expect they went back in acids and I used more because the green ones must have been wetter, yes by a factor of 4.1.

850 ml starter from Wyeast 1762 (Belgian Abbey II) of the Potbelly Dodo Nov. '06. Was 2 weeks after it's hi krausen (late). Bubble every 20 seconds after 12 hours.

Cooler with manifold and spigot weighs 3.5 kg.

With the 5.6 kg grains there was 15.6 l in the mash tun filled up to the rim (~3 l water per grain kg dillution)

First taste is plenty bitter. Color looks dark redish/copper.
Moved fermentor to basement at hi spot where it's 65.5 F (18.6 C), down from 68 F iin kitchen.

Took back to kitchen for 3 days. Then put in 0C garage for 5 hours for the yeast to settle and raked into carboy.

First taste is sweet and fruity. surprisingly at FG 1.011 when kegged after 11 days. Final 7.3 Brix indicates 6.2% ABV which is in style defs.

Created by Dodo