Hi Siiren,
I'm looking for a good recipe for Coopers Pale and Sparkling ale just to brew up for fun and because I enjoy it as a commercial beer.
"Philrob" and "wide eyed and legless" are right on the money, with BYO. Both their references seem to based on an earlier comprehensive BYO article, strangely enough, by an Australian brewer from Melbourne.
Coopers Sparking has been my go to "bottle shop" beer for decades, there weren't many ales available when I first got onto them. But prior to pausing brewing, back in 2006, I'd never been even remotely happy with my attempts to recreate it. Then, after a sea change, the pandemic hit and 2020 provided plenty of "home time" with Coopers Sparkling as a clear target to help me get back into brewing and help hone my brewing skills. After lots of online research, while occasionally sampling the target to keep my aim straight and true, I settled on following this article from the 2009 March-April edition of BYO. This issue heavily features "Australian Brewing" with a sub heading of "Sparking Ale Secrets" and an article specifically on "Australian Pale Ales - Coopers Sparkling Ale" written by Tony Wheeeler, from Melbourne Australia.
Australian Pale Ale - Tony Wheeler - BYO March-April 2009
It's currently available for free download, once you have registered yoru email address with BYO. However, unless you subscribe to BYO, well worth it, your only permitted to download a limited number of articles per month. The article is complete, self contained, and the same as appears in the magazine issue, just without the pictures.
I followed Tony's article and got pretty close on my first attempt. A quick look, sniff and a taste and I immediately recognised it as a Coopers Sparkling. Was it exactly the same, no, but close enough to know it was only a matter of tweaking to get very, very close. Subsequent attempts, got closer and closer such that in side by side tastings I could barely tell them apart, however, I was also often quite unsure of which one I preferred.
Some notes:
I followed Tony's article, including his unusually mash schedule - I used freezer bricks, pretty much to the letter. It's a simple grist, and uses only one hop addition, Pride of Ringwood at 90min. There isn't much to adjust regarding ingredients. I tried a few different brands of Australian Pilsner base malt, and while there was a difference the change didn't swing the resulting beer very far away from the original Coopers Sparkling. The Coopers malt seemed to come closest to the original, though perhaps that was because I knew it was Coopers in a Coopers. In the end it came down to personal preference.
The crystal malt is only for colour so brand and exact EBC don't matter. Simply compare the colour of your brew with the original Coopers Sparkling and adjust your particular crystal quantity up or down in your next attempt.
I prefer the taste of Coopers Sparking with the yeast mixed in but I also prefer to keg rather than bottle as kegging permits the carbonation to be tweaked. Having both at the same time, as I was chasing a target, I gently inverted and agitated the keg prior to each pouring, or the filling of bottles.
Is mentioned in Tony's article Coopers Sparkling owes its character to the yeast. If you like to consume some of the Coopers yeast with the beer then getting the right amount of yeast in the bottle, and the right yeast fruitiness proved the most crucial factor in duplicating Coopers Sparkling. Although a good healthy *clean* ferment is still very much recognisable as Coopers Sparkling, to get close to the original I had to push the ferment temp quite high, 23C air temp in the fridge, to get a suitable level of Coopers "fruitiness". Probably reaching 26C in the fermenter. I tried under pitching, poorly airating, and no yeast nutrient but didn't get enough of that fruitiness.
For water I followed Tony's guidelines:
Treat water to 115 ppm Ca2+ and 280 ppm S04
and using Brun Water came up with the following profile, which was easy to make from my soft tap water, balanced (pos ions = neg ions) nicely, and seemed to work very well:
Ca Mg Na SO4 Cl BiCar
115 20 25 280 74 35
Brun Water predicted a Mash pH of 5.3. If I remember correctly, I derived this profile from Brun Water's "Pale Ale" profile:
Ca Mg Na SO4 Cl BiCar
113 20 25 300 55 35
which I'm sure would also work well.
Happy brewing!
Rob