Gladfield “Big O” NEIPA (Hazy)
Batch Size
30L Kettle Full; ~20L (in fermenter)
Ingredients
Malts
- 5.00kg Gladfield Pilsner Malt (64.5%)
- 0.90kg Gladfield Munich Malt (11.6%)
- 1.00kg Gladfield Big O Malted Oats (12.9%)
- 0.75kg Harraway’s Flaked Wheat (9.7%)
- 0.1kg Gladfield Aurora Malt (1.3%)
Hops
- 0mins (Flameout) – 8g Amarillo 10% (2.7 IBU)
- 8g Citra 13% (3.2 IBU)
- Whirlpool 10min – 32g Amarillo 10% (6.3 IBU)
- Whirlpool 10min – 32g Citra 13% (8.3 IBU)
- Whirlpool 20min – 25g Amarillo 10% (4.8IBU)
- Whirlpool 20min – 25g Citra 13% (5 IBU)
- Whirlpool 30min – 10g Amarillo 10% (1.3 IBU)
- Whirlpool 30min – 10g Citra 13% (1.7 IBU)
Dry Hopping
- DH#1 (Day 3) – 60g Amarillo, 60g Citra
- DH#2 (Day 6 or 1.020SG ) – 70g Amarillo, 70g Citra
DH rate = ~12g/L
Yeast
Lallemand Verdant IPA (1x 11g Sachet)
Mash Additions:
6.00g Calcium Chloride
2.00g Calcium Sulfate
2.00g Magnesium Sulfate
3-4mL 80% Lactic Acid (for pH Adjustment - requires pH Meter)
Brewing Process
- Heat Strike Water to achieve Mash Temp of 69°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 69°C for 60 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 90 minutes adding hops (remember: add no kettle finings) at indicated times.
- At End Of Boil, whirlpool while chilling (immersion style) or for 30 mins following the whirlpool regime. 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, then raise temp to 23°C.
- Begin dry hopping on day 3, then add the second dry hop on day 6 or 1.020SG. Cap the fermentation and allow at least 48hrs diacetyl rest.
- Crash the beer to ~0-1°C until yeast load has reduced. Do not filter or fine this style.
Note: To confirm the haze is not solely due to yeast, take a sample and stand it in a glass in the fridge for 30 mins to check for sediment. If one forms there is still yeast in solution = leave it to condition longer.
13. Once you’re happy with the haze level, rack the beer into a keg.
Force carbonate and/or bottle condition to 2.45-2.55 volumes
CO2.