Learning Series’ #7: (Another) English IPA

The eighth beer that I brewed.

Tried to make another English IPA, to see if I could make it better than the first one was.

First time using liquid yeast for the primary fermentation.

Learning Series' #7: (Another) English IPA

General Data

  • Style: English IPA (12 C)
  • Brewer: Maurício Gardini
  • Type: All Grain
  • Batch Size: 20 l

Dates

  • Brewing: 21/05/2017
  • Fermentation Start: 21/05/2017
  • Fermentation End: 14/06/2017
  • Maturation Start: 14/06/2017
  • Maturation End: 30/06/2017
  • Bottling: 30/06/2017

Recipe

Amount Ingredient Type Added At Additional Information
2.50 kg Weyermann Pale Malt Grain Mash Start  
2.50 kg Thomas Fawcett Pale Malt, Maris Otter Grain Mash Start  
0.50 kg Weyermann Caraamber Grain Mash Start  
0.50 kg Weyermann Caramunich II Grain Mash Start  
0.50 kg Weyermann Carared Grain Mash Start  
35.00 g Hallertau Magnum Hop Boil 60.0 minutes 14.00 % a.a
50.00 g East Kent Goldings Hop Boil 10.0 minutes 5.00 % a.a
1.0 pkg Fermmento Labs AB3 - Englishy Yeast Day 0  
1.0 pkg Fermentis SafAle US-05 American Ale Yeast Day 10  

Statistics

  • Estim. O. G.: 1,071 SG
  • Meas. O. G.: 1,054 SG
  • Estim. F. G.: 1,018 SG
  • Meas. F. G.: 1,017 SG
  • Estim. A.B.V.: 7.0 %
  • Meas. A.B.V.: 4.9 %
  • Bitterness: 58 IBUs
  • Color: 28.1 EBC

Mash Steps

  1. Saccharification: Add 19.95 l of water at 70.9 °C, aiming for a 65.5 °C step temperature, for 60 minutes
  2. Mash Step: Heat to 75.6 °C over 10 min
  3. Fly sparge: with 20.06 l water at 75.6 °C

Fermentation

  1. Step Temperature: 18 °C

Bottling

  • Volumes of CO2: 2.3
  • Carbonation Origin: Bottle with 107.04 g Corn Sugar

Notes

Had problems with my primary fermentation, as it wasn’t achieving the OG that I expected.

The conclusion that I arrived is that I had a stuck fermentation because of underpitching, as the liquid yeast I used was at my fridge for some days.

By my calculations, by the time that I used it, id had around 50% of its original viability.

To continue the fermentation, I pitched a second yeast.