Gladfield Dubbel
Batch Size
30L Kettle Full; ~23L (in fermenter)
Ingredients
Malts
- 3.80kg Gladfield Pilsner Malt (56.5%)
- 0.7kg Gladfield Munich Malt (10.4%)
- 0.7kg Gladfield Aurora Malt (10.4%)
- 0.7kg Gladfield Wheat Malt (10.4%)
- 0.25kg Gladfield Brown Malt (3.7%)
- 0.25kg Gladfield Dark Crystal (3.7%)
ADDED TO BOIL:
- 0.33kg Amber Candi Sugar 60°L (4.9%)
Hops
- 75min – 20g Styrian Goldings 5.0% (10 IBU)
- 30min - 20g Styrian Goldings 5.0% (5.7 IBU)
Yeast
Lallemand Abbaye Belgian Ale (1x Sachet)
Mash Additions:
4.00g Calcium Chloride
1.00g Calcium Sulfate
2.00g Magnesium Sulfate
2.50g Calcium Carbonate
4-5mL 80% Lactic Acid (for pH Adjustment - requires pH Meter)
Brewing Process
- Heat Strike 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.
- 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 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°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 72 hours. Then raise 1 degree per day up to a final temperature of 20°C
- When within 1-2 points of predicted FG, cap the fermentation (spunding valves are great for this) and wait until gravity is stable for 48 hours before deciding to place on cooling
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.