I caught the homebrewing bug a few weeks back. What set the spark was when I climbed into our attic to retrieve the Christmas tree and saw an old brewing keg my father used some 25 years or so ago. I took it down, dusted it off and considered using it. It was virtually poisonous, though, with all manner of stuff growing in it. I wasn’t deterred, however.
I considered new rubber washers, a new lid, new floating tap, etc. But I instead opted for a kit that I would just bottle directly from instead of the hassle of maintaining a draught beer keg. I bought the Coopers kit from HomeBrewWest.ie. This came with a heat belt (just in time for the big freeze) and some food-grade sterilizer.
The beer extract kit that comes with it is Coopers Original Australian Lager. I followed all the instructions, sterilized my equipment, made the wort to the right temperature (using the supplied 1kg of Coopers Brew Enhancer 1), and pitched the kit yeast directly onto the wort. 6 or 7 days later, the final gravity had stuck on 1.018 – I didn’t take an initial reading, so had no idea about whether the original gravity was high also. I tried a few grammes of more yeast and that bubbled up nicely for a few hours, but made little impact on the gravity. After 8 days, I bottled my beer and put 1 Coopers carbonation drop in each 500ml bottle. I guessed the alcohol strength would be something like 4%.
I have to say, unfortunately, that this first batch wasn’t an entire success. After 1 week of conditioning, I tried a couple of bottles. It tasted like lager, looked like lager, but was completely flat. Very disappointing and not drinkable in my opinion. A couple of weeks later and there was thankfully an improvement. Still no head worth talking about, but CO2 gas was evident, with some large bubbles making their way to the surface from the bottom of the glass. Finally, something that was drinkable and meant that 40 half-litre bottles weren’t going to find themselves emptied down the sink. I think the beer will further improve with more conditioning time.
But I’m not a big fan of lager. If I wanted cheap lager, I could just go down the off-licence and pick up some Carling or Dutch Gold. My whole ethos for brewing my own is to have a supply of World beers. So batch 2 was going to be an English or Scottish style IPA (India Pale Ale). Again I used a Coopers kit: their Brewmaster IPA. To make up the wort, I added 500g of Munton’s Spray Malt and 300g of Dextrose (i.e. brewing sugar). I ended up mixing yeasts, with what I had left of the kit yeast (some of it ended up in the original lager) and Coopers ale yeast. Again I pitched dry onto the top of the wort.
3 days in and the whole thing had fermented like an anti-christ and reached a final gravity of 1.012 (alcohol strength of about 5%), which is about as far as it was ever going to drop. So I bottled – again with 1 carbonation drop per 500ml bottle. After just a few days, I tried my tester bottle (the last one filled from the dirty stuff at the end of the fermentation vessel) – it was surprisingly good and had a good head. Miles different to the original lager. A week later and I considered the entire batch perfectly drinkable – all the cloudiness had gone. It will, of course, improve with age. Definitely the IPA is a success.
I’m a big fan of strong Belgian beer, with Leffe (6.6% Blonde) being a particular favourite. Next up was Brewferm Grand Cru. This was where I first had to consider my ingredients … Belgian ales tend to be dry and use Candi sugar – which is inverted sugar that allows the yeast to work quickly since the inversion process does a lot of the work the yeast would otherwise have to do. I didn’t have the option of candi sugar, so I opted instead for 2/3 unprocessed cane sugar and 1/3 soft brown sugar. This ended up with a huge krausen (the head/crust that forms early in fermentation), as high again as the depth of the beer in the vessel. 6 days later and I bottled it, calculating the alcohol strength to be 8.1%. Because of the strength, the volume was down – just 16 500ml bottles. That was a lesson learned for batch 4.
It definitely had a lovely golden colour, as advertised, though was quite cloudy – approaching the look of apple juice. The conditioning time is at least 6-8 weeks and I tried a couple 2 weeks in. The beer had a nice head at that point and was quite drinkable. Strong flavour and strong smell, as you would expect, and it went straight to my head. With at least 1 more month conditioning, it should be a superb beer.
One thing of note with this batch was the priming sugar (what I add to the bottle for secondary fermentation). Having seen the result of the original lager, I suspected (wrongly) that 1 carbonation drop wasn’t enough per 500ml bottle. I opted for 2 with this batch. This despite the fact that I knew that when brewing strong Belgian beer, ordinary glass bottles would probably explode (I use re-usable plastic / PET bottles that Coopers make). I knew the potential for disaster, so I kept checking the bottles in my hot press daily. One day I noticed one of the bottles was not fully expanded – it gave when I squeezed it. The pressure had forced its way out and broken the seal. I had to go through each bottle and let some gas out, then retighten the cap. This seems to have worked, and though the bottles are now back to being very much expanded, they should hold just fine.
Batch 4 was another Belgian – the Brewferm Abbey beer. This time I opted for 2 kits so that I would not just have 9 litres. For the wort, I opted for a 454g can of Lyle’s Golden Syrup, which is 80% part-inverted sugar – as close as I could get to authentic candi sugar. For the remainder, I used unprocessed cane sugar. I decided to fill up to 19 litres instead of 18 to slightly reduce the alcohol content.
This batch bubbled and bubbled for 10 days. By the end, the gravity had dropped to where I calculated the strength as 7.8% – not too far below the advertised 8% for 18L. With the lesson learned from the Grand Cru, I decided to bottle with 1 carbonation drop and 1 or 2g of table sugar. This meant dropping in the drop with just the tip of a teaspoon of sugar. So far, the bottles have expanded up to where the Grand Cru is in terms of pressure, but look like they’ll all be fine. I can’t wait to try one of these 35 bottles in another week or so.
Batch 5 is the Coopers International Canadian Blonde, which I have just bottled – 45 500ml bottles, to be precise. This was made with an alternative yeast to the one supplied with the kit – Safale US05, which is supposed to produced North American-style ale – you would think ideal for a Canadian Blonde. I used a 1kg pack of Coopers Brew Enhancer 1 and added 100g of Dextrose when the gravity looked to be about 1.039 with just the Brew Enhancer. Unfortunately, my hydrometer was damaged in the meantime, so I couldn’t take an accurate final reading, but I estimate the strength somewhere between 3.6% and 4%. Tasting what went into the bottle reminded me somewhat of Hoegaarten, but there was definitely a light fruitiness of some kind – definitely seems like it will be a summer drink, as is suggested.
The initial fermentation lasted 8 days, but what surprised me was a relative lack of krausen. It barely grew to more than a centimetre in height, but fermentation was active continuously, so perhaps that was just the nature of the Safale US05 yeast. Only testing will tell if that makes any difference at all – though it did mean I could go for a couple more bottles than usual because there was so much less crud floating around.
That’s it for a while. 5 batches and over 170 500ml bottles is quite enough for now. Next post will deal with the final fully-conditioned products.