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Date started: 9 August 2003 Volume: 25 litres Initial density: 1040 @24° Ingredients: 1.5 kg Coopers "Bavarian Lager" hopped malt extract 1.5 kg Grumpy's "Schultzheiss" German Lager Master Brew Mix 11.5g Saflager W34/70 dried yeat Grumpys mashed 10 min. Add Coopers, hops, bring to boil, boil 3 min. Rehydrate yeast. Pitched at 24°. Fermentation activity appeared almost immediately. Cooled overnight to 18°, fermentation stopped.Probably there was no fermentation, just activity from rehydration.
Fermentation progress:
10.VIII cooled to 10°. Still no fermentation.
11.VIII No change. In evening moved to kitchen.
12. VIII 21°. Fermentation (re)commences.
13. VIII 20° 0.22 Hz, much scum on surface. Is this a real
bottom fermenter?
pm 0.27 Hz. Moved to cooler location. Less scum.
14.VIII am 13° 0.14 Hz
pm 13° 0.125 Hz
15.VIII am 11° 0.09 Hz
pm 11° 0.09 Hz
16.VIII am 11° 0.065 Hz
pm 11° 0.075 Hz
17.VIII am 11° 0.065 Hz
pm 12° density 1018. Hop scum.
0.60 Hz
18.VIII am 12° density 1016. Racked.
20.VIII pm 12° density 1013.
bottled with 140 g sucrose (6 g/l).
Bottling statistics:
Bottles size total
30 0.5 l 14.0 l
24 0.375 l 9.0 l
Total 23.0 l
16 September: Still cloudy, low condition. Quite bitter, medicinal aftertaste.
24 September: Got Thomas Hamann of Grumpys to taste it. Verdict: infected, drink as quickly as possible.
28 September: Strong increase in condition, almost impossible to pour (gusher infection?)
9 October: Foaming appears to be associated with storage temperature: doesn't happen to bottles stored in the fridge from the beginning.
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