Brew Number 125

• Twøbays Full Grain Blood Orange IPA (Gluten Free) (Brewfather version)
• Brew Father Batch and Recipe

Ingredients

• 4.0kg Pale Millet Malt
• 1.2kg Pale Rice Malt
• 1.0kg Vienna Millet Malt
• 0.5kg Munich Millet Malt
• 400g honey
• Juice & zest of 1kg navel oranges (I didn't have blood oranges)
• 25g Centennial hops (8% AA)
• 50g Ella hops (13.3% AA)
• 50g Citra hops (13.5% AA)
• 50g Galaxy hops (14.3% AA)
• 30mL Beta-glucanase
• 30L Alpha-amylase
• 5mL Glucoamylase
• 4g Yeast nutrient
• 2.8g + 0.4g Calcium Chloride
• 2.6g + 0.4g Magnesium Sulphate
• 10g + 1.5g Calcium Sulphte
• 0.75g Whirlfloc G
• 2 x Lallemand West Coast Ale yeast packets
• Sachet of Mangrove Jacks Liquid Finings

Used Brewzilla for mashing.

Process

• Milled millet twice to ~0.65mm.
• Milled rice twice to ~0.90mm.
• Brought 25L of water to 85C.
• Add salts and malts.
• Stir on and off for 20 minutes.
• Cooled to 50C.
• Add all enzymes, stiring for 20 minutes.
• Set temperature to 80C for 120 minutes.
• Sparge with 5.5L water.
• Started boil, added juice and honey
• Added 25g Centennial (in hop spider), added Whirfloc and nutrient by mistake
• After 45 minute boil add (more) Whirlfloc and nutrient.
• Boil for 15 mins more.
• Turn off heaters.
• Hop stand with 25g Citra and 25g Galaxy for 20 minutes.
• Chill wort (chiller in ice bucket).
• Pump to fermenter (~27C) filtered through muslin bag.
• Pitch yeast.

Used enzyme dosages from GF home brewing tutorial, seem high but there are plenty of enzymes..

Ended up with 19L in Fermzilla.

Brew house efficiency calculated at 89.4% (24.4 ppg) (seems very high..)

The yeast has an apparent attenuation of 81% If that is so the final gravity should be...

FG = (SG - 1000) * (1 - AA/100) + 1000 
   = ((?? - 1000) * (1 - 81/100)) + 1000
   = ??

Date

Measured SG

Temperature

Corrected SG

Brix

Notes

Notes

• Yeast pitched at 20C.
• Temperature set at 20C.
• Used iSpindel3.
• Spunding valve set to 20 PSI (ale should have 2.3-2.6 volumes of CO2, used 2.0 to try and stop the iSpindel leaking).
• ABV = 1.646 * RI - 2.703 * (145 - 145 / SG) - 1.794 =
• Grafana plot

Appendix

• BrixConversion
• Refractometer calculator
• BrewCalculator
• Carbonation Calculator
• HydroCorrection
• ABV measurements

-- Main.darius - 19 Apr 2021