Date started: 16 July 2005
Volume: 26 litres
4.973 kg Joe White Maltings Pale Ale malt
0.285 kg Thomas Fawcett Caramel Malt, 30 EBC
Wyeast 1275 Thames Valley ale yeast, from brew 58
1 g Wyeast yeast nutrient
25 g Pride of Ringwood, home-grown, 90 min
35 g Tettnang 4.2 AA, 10 min
Mash type: step infusion.
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20 minutes at 62°
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10 minutes warm to 73°
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30 minutes at 73°.
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7:57 Add malt to 14 litres of water at 68°. Resultant temperature 62°.
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8:17 Temperature 61°. Start heating.
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8:27 Temperature 73°, rest.
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8:57 Temperature 72°, start sparge. Initial runnings ~21.5% Brix, pH 5.3.
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9:35 Finish sparge. Final runnings 1.5% Brix, pH 6.1.
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9:46 Wort boils.
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9:50 Add Pride of Ringwood hops.
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11:00 Add cooler.
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11:10 Add Tettnang hops, nutrient.
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11:20 Start cooling.
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11:40 Rack 12 litres.
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11:44 Start aerating 12 litres.
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11:59 Finish aeration.
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12:45 (after racking remaining wort) pitch at 18.5°.
Initial Brix: 12.0
OG: 1048
pH: 5.4
Date time freq
14 August 2005 10:00 0.013
14 August 2005 18:20 0.37
15 August 2005 9:10 0.59
15 August 2005 17:45 0.48
16 August 2005 8:45 0.052
16 August 2005 18:05 0.041
3 September 2005 Bottled with 235 g saccharose (9 g/l)
Before priming:
SG 1016
Brix 7.2%
pH 4.5
After priming:
Brix 7.9%
pH 4.5
Bottling statistics:
Bottles size total
40 0.5 20.00
14 0.375 5.25
Total 25.25
Fermentation temperature
Notes
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Boiled longer, PoR for 90 minutes. I'm wondering if I should do something to mix the hops
better: even at the end of the boil many were floating, and it's not clear to me how
effective the transfer of resins is under those circumstances.
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Very much lower OG than other brews (11.9% Brix, compared to 13.3% Brix for
brew 58, which also had about 10% more volume). That's a 20%
difference. Was it due to the single infusion, or due to the crushing? I have exactly the
same malts for next time, so I'll do a step infusion next time and compare the results. This
still leaves the possibility that the malt flour settled to the bottom of the sack, and that
I thus didn't get as much in this brew.
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Lots of problems with the temperature control. No harm done, but it needs to be
reviewed.
