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21C Hazy IPA

Abandoned Hazy 18 (clone)

Brewed 2025-02-23 Batch · 21 L Matt Paterson
ABV6.0% OG1.056 FG1.010

Grain bill

Gladfield Ale Malt 3.3 kg 54%
Gladfield Wheat Malt 1.1 kg 18%
Gladfield Pilsner Malt 1 kg 16.4%
Gladfield Sour Grapes Malt 0.375 kg 6.1%
Gladfield Big O Malted Oats 0.34 kg 5.6%

Adjuncts

Lactic Acid
Calcium Chloride 3 g
Calcium Sulphate 1.95 g

Hop schedule

Hop 60 minWP 85°CDH#1
Centennial 10g20g30g
Columbus ·20g30g
Kohatu ·40g50g

Yeast

LalBrew Verdant IPA2 packets

Tasting notes

Tasted on transfer — tasting good; would benefit from settling after transfer and carbonation.

Fermentation profile

RAPT Pill·439 readings over 15d 1h·OG and FG as measured·

Gravity

1.056OG
1.010FG
82%Attenuation
4d 7hTo terminal

Temperature

23.1°CPeak
20.3°CMean
9.6°CMin
13.5°CRange
TimeGravityTemp

About This Beer

A recipe from Abandoned Brewing in Wellington, brewed from a kit won as a prize at the Poribrewer club’s BBQ beer competition. Abandoned provided the recipe and the local homebrew shop provided the ingredients as part of the prize.

The grain bill is a hazy ale base: Ale and Wheat Malt for body and the soft hazy mouthfeel, Pilsner to keep the colour light, and Big O malted oats for the creamy texture a New England IPA wants.

Gladfield Sour Grapes Malt contributes natural malic acid, which reduces the lactic addition needed to hit mash pH. The recipe specifies 2 ml in the mash water rather than the usual amount, cut to account for what the malt brings.

Centennial, Columbus and Kohatu across the whirlpool and dry hop: floral citrus, earthy peppery intensity, and tropical melon and passionfruit respectively.

Brew day

Ninety minute boil, whirlpool held at 85°C for 20 minutes before chilling. A slightly higher sparge volume than usual meant a lower starting gravity than the recipe called for.

Fermentation

Two packets of Verdant. 18°C for the first 24 hours, stepping to 20°C for five days, then 22°C for a seven-day diacetyl rest. Some overflow at peak krausen, with pressure kept low at around 2 psi through the active phase.

Dry hopped once gravity dropped below 1.020, at about day 4. The earlier-than-usual timing was deliberate: adding hops while fermentation still has some activity left gives the yeast the chance to scavenge the oxygen introduced with them.

Temperature lowered slowly over a couple of days after the rest.

The result

Nineteen litres kegged and two bottled. Tasted well on transfer, and will benefit from settling and carbonation.