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Date started: 19 April 2004
Volume: 26 litres
0.100 kg Coopers extra light malt extract (starter)
4.005 kg Coopers extra light malt extract (wort)
0.330 kg Coopers extra light malt extract (priming)
37 g Tettnang 5.5% AA, 60 min
20 g Tettnang 5.5% AA, 5 min
Wyeast 2565 Kölsch Yeast from Brew 26
Alcohol: 5.5% v/v (calculated)
IBU: 27
Malt extract and hops boiled for 60 minutes with about 12 litres water. Cooled to 40°,
diluted in fermenter, resultant temperature 25°. Aerated with aquarium pump for 10
minutes in two attempts; heavy foaming was a problem. Pitched.
Initial density (bottom): 1048 @20°
Final density: 1012 (calculated)
Brix: 12.3% (bottom)
12.3% (top)
11.98% (calculated)
--> Extract 79%
pH (bottom): 4.8
IBUs: 27 (calculated)
Potential ethanol: 4.3551 w/w
5.4879 w/v
Date time freq wort surroundings
19.iv pm pitched 25.0°
20.iv am 0.39 22.0 17.0°
morning Thermostat seized, temperature dropped to 14°.
pm 0.48 Hz 18.0 21° (heating)
21.iv am 0.32 Hz 22.0 21° (heating)
pm 0.089 Hz 20.5 19.0°
22.iv am 0.067 Hz 20.0° 19.0°
pm 0.064 Hz 20.5 19.0°
23.iv am 0.052 Hz 20.0° 18.5°
pm 0.052 Hz 20.0 18.5°
24.iv am 0.045 Hz 19.0° 17.0° (cooler outside)
25.iv am 0.029 Hz 19.5° 17.0°
pm racked
26.iv am 0.044 Hz 20.0° 19.0° (heating)
27.iv am 0.021 Hz 20.0° 19.0° (heating)
28.iv am 0.022 Hz 20.0° 19.0° (heating)
29.iv am 0.020 Hz 20.5° 19.0° (heating) Kräusen subsiding
30.iv am 0.018 Hz 21.0° 20.0° (heating, too warm)
1.V Bottled
FG = 1015 after priming = 1011 before priming
7.5% Brix after priming = 6.6% before priming
pH 4.0
Bottling statistics:
Bottles size total
16 0.75 l 12.0 l
24 0.5 l 12.0 l
2 0.375 l 0.75 l
Total 24.75 l
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