18B American Pale Ale
Resurgence Pale Ale
ABV6.3% OG1.058 FG1.012Grain bill
| Gladfield American Ale Malt | 4.74 kg | 71.4% |
| Gladfield Vienna Malt | 1.12 kg | 16.9% |
| Gladfield Aurora Malt | 0.8 kg | 12.1% |
Adjuncts
| Yeast nutrient | half tsp @ 10 min |
| Whirlfloc | half tablet @ 10 min |
Hop schedule
| Hop | 60 min | 10 min | WP | DH#1 |
|---|---|---|---|---|
| Nectaron | 15g | · | 25g | 60g |
| Riwaka | · | 40g | 40g | 120g |
Yeast
| LalBrew BRY-97 | 2 packets |
Water additions
| Calcium Sulphate | 1 tsp in mash |
| Calcium Chloride | half tsp in mash |
| Lactic acid (88%) | 4 drops in sparge |
Tasting notes
About This Beer
Owen’s second pressure fermentation, and the first built around NZ hop varieties as the star.
A clean grain bill: American Ale, Vienna for depth, Aurora for a hint of colour and light crystal character. Riwaka takes the lead across three additions, with Nectaron for bittering and late-stage support.
The whirlpool technique carries over from RIPA Under Pressure: heat off at the flameout addition, rapid cool to 80°C for the Riwaka, then hold at 80°C through to the end of the stand before resuming cooling. That preserves more volatile hop compounds than pitching straight into hot wort.
Fermentation
18°C at 5 to 6 psi for the first four days. Day-5 dry hop through the Hop Bong, then the spunding valve closed and pressure allowed to build to 22.5 psi by day 9. Gradual cool to 5°C over days 10 to 14, holding 2.7 volumes throughout.
Bottling
Required a slow pressure reduction from 15 psi down to 3. At 7 psi a trub disturbance meant a four hour wait for it to settle before bottling could proceed.
Twenty litres bottled, carbonation good.