
This is not an exact Coopers Stout clone. It's my Coopersch Stout, which is German for kinda like Coopers Stout.
The starting point for this recipe came from fellow forum member Wally, a real live Australian brewer who not only shared his meticulous research into Coopers Best Extra Stout, he also generously mailed me Pride of Ringwood hops all the way from Australia.
Mistakes I knew I was making: The original Coopers Best Extra Stout was 6.9% alcoholic strength, Wally brews it even higher at 7.8% abv, but I knocked mine down to 5% ABV. Sacrilege, I know, but all my recent brews have been high-gravity and I need something tamer to drink. I also replaced his Wheat Malt with Torrified Wheat (unmalted), which produces a fuller and breadier mouthfeel. I replaced his Black Malt with Roasted Barley, and I added some Pale Chocolate Malt. The hops and yeast are spot-on, though.
Prepping the hops, sugar, Calcium carbonate and Irish Moss.SEYMOUR COOPERSCH STOUT
Brewed March 6, 2016
5 US gallons = 4.2 Imperial gallons = 19 Liters
GRAINBILL
78% = 6.79 lbs = 3.08 kg, Two-Row Pale Malt
7% = .61 lb = 276 g, Torrified Wheat
6.8% = .59 lb = 268 g, Roasted Barley
2.8% = .24 lb = 110 g, Pale Chocolate Malt
5.5% = .48 lb = 218 g, Lyle's Golden Syrup (added to boil)
TOTAL: 8.71 lbs = 3.95 kg
MASH
Stir-in some Calcium carbonate to add hardness and balance the acidity of dark roasted grains.
Add 3 US gal/2.5 Imp gal/11.4 L water at 161°F/71.7°C to reach: 150°F/65.6°C for 60 min
Add 2 US gal/1.7 Imp gal/7.6 L boiling water to reach: 170°F/76.7°C for 10 min
VORLAUF and draw some of rich first-runnings into a pot, add Lyle's Golden Syrup and boil hard on the stove-top, stirring periodically to avoid scorching for 15 minutes to further caramelize.
SPARGE with 3 US gal/2.5 Imp gal/11.4 L water to collect 7 US gallons/5.8 Imp gal/26.5 L pre-boil.
BOIL hard for 90 min, adding the caramelized wort and hops at start, Irish Moss at 15 min remaining.
HOPS
1.58 oz = 45 g, Pride of Ringwood (thanks, Wally!), First Wort Addition
KNOCK-OUT, CHILL, AERATE, PITCH.
YEAST
Coopers Brewery liquid single-strain, available as White Labs WLP009 "Australian Ale", 4th repitch in my brewery, ferment at 60°F/15.6°C
STATS (assuming 77% mash efficiency and 80% yeast apparent attenuation)
OG: 1050
FG: 1010
ABV: 5.3%
IBU: 45
COLOUR: opaque very dark reddish-brown
2008 BJCP: 13A. Dry Stout
2015 BJCP: 16D Foreign Extra Stout, except lower gravity

The darkly-hued mash.

Hit the mash temp right on.

I made a quick-and-easy yeast starter by watering down this malt beverage, compliments of Danish Royalty.

Weighing the sugar addition. I've never used authentic Lyle's Golden Syrup before. It felt little weird using a paint can opener for a brewing ingredient.

Sparging into the boil kettle.

Coming to a boil.

Killing three birds with one stone: sanitizing the bucket and chiller, and testing the chiller for leaks.

Original gravity appears to be 1050.
