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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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