Gladfield “G-Funk” WCIPA
Batch Size
30L Kettle Full; ~20L (in fermenter)
Ingredients
Malts
- 3.0kg Gladfield American Ale Malt (45%)
- 2.0kg Gladfield Light Lager Malt (30%)
- 0.66kg Gladfield Munich Malt (10%)
- 0.66kg Gladfield Wheat Malt (10%)
- 0.33kg Gladfield Toffee Malt (5%)
Hops
- FWH – 10gColumbus 13.5% (15 IBU) – Tip: Dissolve in 1st runnings; pour slurry into kettle
- 60min – 15g Centennial 9.8% (15 IBU)
- 10min – 10g Centennial 9.8% (4 IBU)
- 10g Columbus 13.5% (5.5 IBU)
- Whirlpool- 20g Simcoe 13.5% (5.4 IBU)
- 20g Mosaic 11.8% (4.7 IBU)
- 10g Centennial 9.8% (2.0 IBU)
- 10g Columbus 13.5% (2.7 IBU)
Dry Hop (@ SG= 1.016-1.020)
- 55g Centennial 9.8% (IBU)
- 70g Columbus 13.4% (12.7 IBU)
- 130g Simcoe 13.5% (12.7 IBU)
- 130g Mosaic 11.8% (12.7 IBU)
DH rate = ~15g/L
Yeast
Lallemand BRY-97 West Coast Ale Yeast (2 Packets)
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
- HeatStrike Water to achieve a 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 60 mins. Confirm no residual starches remain.
- At the end of mashing, take a 1L sample of 1st runnings and dissolve 1st Wort Hops (FWH) into it. Pour this slurry into the kettle at the beginning of run-off (when the malt tube is lifted)
- 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 75 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.
- Aim to add the dry hop addition on day 5 or ~4-8 Specific Gravity points (1.5-2.0Po) 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 (Style Tip - Classic IPAs should have good clarity)
- 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 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.