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)
Brewing Process
- Heat Strike Water to achieve Mash Temp of 67°C (~6°C above strike).
- Add minerals to Strike or Foundation water.
- 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).
- Mash at 67°C for 45 mins. Confirm no residual starches remain.
- 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).
- Boil for 60 minutes adding hops and kettle finings at indicated times.
- At End Of Boil, whirlpool while chilling (immersion style) or for 10 mins, stand 15 mins or until chilled to pitching temperature.
- Transfer to fermenter at 18-20°C, oxygenating wort (inline or via aeration in fermenter).
- Rehydrate and pitch yeast as per manufacturer's recommendations. Ferment at 18°C for the first 3-4 days.
- 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?...
- 48-72hrs after FG is reached (i.e. Taste No Diacetyl), Crash to 5-6°C.
- Add preferred finings (Klarsol, Gelatine, etc.).
- Crash cool to 0-1°C and wait for the beer to clear naturally or filter as required.
- Keg or bottle condition - your choice? Aim for 2.55-2.65 volumes of CO2.