Gladfield Double IPA

Batch Size

30L Kettle Full; ~20L (in fermenter)

Ingredients

Malts

  • 4.1kg Gladfield American Ale Malt (51.8%)
  • 2.9kg Gladfield Pilsner Malt (36.6%)
  • 0.4kg Gladfield Munich Malt (5.1%)
  • 0.2kg Gladfield Chit Malt (2.5%)
  • 0.32kg Dextrose (Corn Sugar) (4%)

Hops

  • FWH- 10g Pacific Jade 12.7% (14.8 IBU)
  • 60min– 10g Mosaic 12.8% (12.8 IBU)
  • 10g Columbus 15% (15 IBU)
  • 10min– 15g Mosaic 12.8% (7.8 IBU)
  • 10g Columbus 15% (6.1 IBU)
  • 10g Nelson Sauvin 11.8% (4.8 IBU)
  • Whirlpool 25g Mosaic 12.8% (6.1IBU)
  • 20g Columbus 15% (5.8 IBU)
  • 15g Nelson Sauvin 15% (2.9 IBU)

Dry Hopping

  • DH#1 (Day 4): 110g Mosaic, 60g Columbus
  • DH#2 (Day 5): 75g Nelson Sauvin, 50g Columbus,
  • DH#2 (Day 6): 50g Nelson Sauvin, 100g Mosaic,

DH rate= ~22g/L


Yeast

Lallemand BRY-97 West Coast Ale Yeast (1 Packet)


Mash Additions:

4.00g Calcium Chloride

7.00g Calcium Sulfate

1.5g Magnesium Sulfate

4-5mL 80% Lactic Acid (for pH Adjustment - requires pH Meter)

Water Profile

Brewing Process

  1. Heat Strike Water to achieve Mash Temp of 67°C (~6°C above strike).
  2. Add minerals to Strike or Foundation water.
  3. Begin mashing in. Measure the mash pH (once all the grain is added) to achieve 5.2-5.5 (adjust with 1 mL additions of 88% lactic acid, if required).
  4. Mash at 67°C for 45 mins. Confirm no residual starches remain.
  5. Batch sparge with 78°C water until kettle volume is achieved (or stop runoff when the last runnings drop below 1.010 and pH rises above 5.75).
  6. Boil for 60 minutes adding hops and kettle finings at indicated times.
  7. At End Of Boil, whirlpool while chilling (immersion style) or for 10 mins, stand 15 mins or until chilled to pitching temperature.
  8. Transfer to fermenter at 18-20°C, oxygenating wort (inline or via aeration in fermenter).
  9. Rehydrate and pitch yeast as per manufacturer's recommendations. Ferment at 18°C for the first 3-4 days.
  10. Begin dry hopping on day 3. Aim to add the final dry hop addition at 4-6 SG points (1-1.5Po) from the predicted Final Gravity. Once added, cap the fermentation (spunding valves are great for this), raise the fermentation set point to 22°C for at least 48hrs to diacetyl rest.

Fining/ Filtering?...

  1. 48-72hrs after FG is reached (i.e. Taste No Diacetyl), Crash to 5-6°C.
  2. Add preferred finings (Klarsol, Gelatine, etc.).
  3. Crash cool to 0-1°C and wait for the beer to clear naturally or filter as required.
  4. Keg or bottle condition - your choice? Aim for 2.55-2.65 volumes of CO2.


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