2020 09 Comet - Beer Recipe - Brewer's Friend

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2020 09 Comet

162 calories 16 g 330 ml
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Beer Stats
Method: All Grain
Style: American Pale Ale
Boil Time: 70 min
Batch Size: 22.8 liters (fermentor volume)
Pre Boil Size: 28 liters
Post Boil Size: 20.5 liters
Pre Boil Gravity: 1.043 (recipe based estimate)
Post Boil Gravity: 1.059 (recipe based estimate)
Efficiency: 77% (brew house)
Source: self
Calories: 162 calories (Per 330ml)
Carbs: 16 g (Per 330ml)
Created: Saturday July 4th 2020
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Fermentables
Amount Fermentable Cost PPG °L Bill %
4 kg New Zealand - American Ale Malt4 kg American Ale Malt 37.3 2.54 80%
1,000 g New Zealand - Vienna Malt1000 g Vienna Malt 39.1 3.45 20%
5 kg / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
14 g Comet14 g Comet Hops Pellet 8.2 Boil 60 min 13.58 16.7%
14 g Comet14 g Comet Hops Pellet 8.2 Boil 18 min 7.67 16.7%
28 g comet28 g comet Hops Pellet 8.2 Whirlpool at 82 °C 30 min 33.3%
28 g comet28 g comet Hops Pellet 8.2 Boil 1 min 1.17 33.3%
84 g / $ 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
3 g Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
1 g Epsom Salt Water Agt Mash 1 hr.
4 g Gypsum Water Agt Mash 1 hr.
2.50 ml Lactic acid Water Agt Sparge 1 hr.
 
Yeast
Fermentis - Safale - American Ale Yeast US-05
Amount:
1 Each
Cost:
Attenuation (avg):
81%
Flocculation:
Medium
Optimum Temp:
12 - 25 °C
Starter:
No
Fermentation Temp:
18 °C
Pitch Rate:
0.35 (M cells / ml / ° P) 105 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.45 Volumes
 
Target Water Profile
Melbourne, Australia (Silvan July 2016)
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
0 0 0 0 0 0
1g mgso4
3G cacl2
4g caso4

2.5g lactic in sparge
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
19 L Infusion -- 69 °C 120 min
Starting Mash Thickness: 3 L/kg
Starting Grain Temp: 18 °C
Quick Water Requirements
Water Liters
Strike water volume at mash thickness of 3 L/kg 15
Mash volume with grains (equipment estimates 15.9 L) 18.3
Grain absorption losses -5
Remaining sparge water volume (equipment estimates 18.3 L) 18.9
Mash Lauter Tun losses -0.9
Pre boil volume (equipment estimates 27.4 L) 28
Boil off losses -6.7
Hops absorption losses (first wort, boil, aroma) -0.3
Post boil Volume 20.5
Hops absorption losses (whirlpool, hop stand) -0.1
Top off amount 2.4
Going into fermentor 22.8
Total: 33.9  
Equipment Profile Used: System Default
 
Notes

Overnight at 78 approx then completed next day. Seemed to hit 81oC in the mash (robo target was lower) but no apparent grain astringency.

Sat Sept 4
2 pks US05. fast start. No O2. Dropped cooled wort into fermenter via hose; sprinkled 2 packs on top. Shook for 10 secs around 10-15min later. Then another short shake a few hours later.

tasted and smelt fine after 2d fermentation.

I had made an MO-Comet smash recently, and it was brilliant - flavours remained stable in the bottle for months (stove top muckaround, slow cooled in laundry sink .... no notes, grrrr). This one fell well short. Likely fermentation flaws ... brew club guy suggested cidery off-flavours. Surprising given rapid fermentation start. May have been temp control,

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  • Last Updated: 2021-01-03 21:45 UTC