Sam’s Pacific IPA (2020)

Batch Size

30L Kettle Full; ~20L (in fermenter)

Ingredients

Malts

  • 6.00kg Gladfield American Ale Malt (86.9%)
  • 0.45kg Gladfield Gladiator Malt (6.3%)
  • 0.45kg Gladfield Wheat Malt (6.3%)
  • 0.3kg Gladfield Munich Malt (4.2%)

Hops

  • 60min boil – 15g Pacific Jade 12.7% (19 IBU)
  • 10min boil – 30g Nelson Sauvin 11.8% (14.2 IBU)
  • Whirlpool – 50g Riwaka 7% (6.5 IBU)
  • 50g Citra 13% (12 IBU)
  • 30g Galaxy 15.4% (8.6 IBU)

Dry Hopping

  • DH#1: (Day 3) – 50g Riwaka, 50g Citra
  • DH#2: (Day 5) – 70g Nelson Sauvin, 70g Galaxy

DH rate = ~10g/L


Yeast

Lallemand BRY-97 West Coast Ale Yeast (1 Packet)


Mash Additions:

6.00g Calcium Chloride

5.00g Calcium Sulfate

3.00g Magnesium Sulfate

3-4mL 80% Lactic Acid (for pH Adjustment - requires pH Meter)

Water Profile

Brewing Process

  1. Heat Strike Water to achieve Mash Temp of 67°C (~6°C above strike).
  2. Add minerals to Strike or Foundation water.
  3. 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).
  4. Mash at 67°C for 45 mins. Confirm no residual starches remain.
  5. 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).
  6. Boil for 60 minutes adding hops and kettle finings at indicated times.
  7. At End Of Boil, whirlpool while chilling (immersion style) or for 10 mins, stand 15 mins or until chilled to pitching temperature.
  8. Transfer to fermenter at 18-20°C, oxygenating wort (inline or via aeration in fermenter).
  9. Rehydrate and pitch yeast as per manufacturer's recommendations. Ferment at 18°C for the first 3-4 days.
  10. 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?...

  1. 48-72hrs after FG is reached (i.e. Taste No Diacetyl), Crash to 5-6°C.
  2. Add preferred finings (Klarsol, Gelatine, etc.).
  3. Crash cool to 0-1°C wait for the beer to clear naturally or filter as required.
  4. Keg or bottle condition - your choice? Aim for 2.55-2.65 volumes of CO2.


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