A belgian pale ale. This one was split two ways, one with brett brux from orval, one with brett brux from brasserie de la senne's bruxellensis. One bottle was kept clean, just for comparison purposes.
It was 80% pale (flagon, crisp), 10% sugar syrup I made from beet sugar mixed with water in a pan, which was a light honey colour, and 10% torrefied wheat. I just entered the syrup in the recipe calculator as sugar and accounted for the weight of the water. Aimed for a gravity of 1.040. Hops were 15 g of mandarina bavaria at 45mins for 17 IBU and 10g of homegrown mixed goldings and fuggles at 5 mins for negligible IBU (<2 I imagine). Yeast was mangrove jacks M47 Belgian abbey. I slightly under-pitched by using a quarter of a packet in a 10L batch in order to promote esters.
The beer was fermented in a 10L bucket, then after primary was racked into two 5L demijohns and one bottle. The bottle was primed with sugar and the two demijohns had one type of brett each and then was fitted with an airlock and left for a couple of months.
The beer was a bit darker than I was expecting. I don't know if this was from the torreffied wheat.
Tasting. I accidentally tried the clean portion separately to the others. It had a very pleasant fruity estery flavour initially, then there was a quite firm bitterness, which was satisfying in itself but clashed a bit with the yeast and then developed to a slightly strange astringent soapy aftertaste as the hops and yest fought to control the slightly thin finish. I'd probably add some wheat and down the bitterness next time, or just use an english yeast and mash a bit hotter for a nice bitter.
To free up some space in the kitchen I decided to blend the two Brett versions with a pale sour blend I had on the worktop for about a year. The details of that beer are a little hazy, but I know it is a mix of sourdough starter fermented 100% pale malt and repitched lager yeast in a sort of mainly honey and a tiny bit 25%? pale malt wort. The taste is apricots and honey. Really amazingly nice and not really sour, about the same as a sourish apple. A few sourdough notes. I doubt I could ever recreate this exactly, but might try something similar.
On the left is a pale sour, and the right is one Brett Belgian pale ale.
The blend ratio was 3:1 pale ale: sour. I chose to carbonate to 3 vols of CO2. This was because both beers were pretty flat after a few months of aging. If the Brett takes it up .6 vols I'm still probably ok for bottle strength, if actually it doesn't and there is no CO2 currently in the beer I'm still at a respectable 2.4 vols.
The three amigos post racking.
The three amigos post racking.
I must confess, I made a few blunders. One airlock ran dry on one carbouy causing a pellicle to form. I also forgot which batch was which. Finally in the second batch I got a load of the lees into the bottling bucket, causing it to be much cloudier than the other batch. At this poiny I don't think I can really make a fair comparison.
But anyway, to the tasting!
Above is a photo of both beers. The one on the left had poorer head retention. The one on the right was much fruitier, and had the perception of being sourer. The one on the left, which I think I recognise as the orval Brett, had more of a minerally character. Both beers were very dry. Whilst I'll wait a bit longer for things to marry, as they only had a week or two in the bottle, the beers seemed a bit disjointed. A sort of microbial mess. I preferred the sourer one which had a sort of generic red soft fruit flavour, whilst the minerally one was more harshly Brett at first and then made a suggestion of pink grapefruit squash to my ever listening taste buds. If the bitterness fades and the bugs start to get along a little better these could be nice, but at the moment they are just so so. A final thing to note is I was surprised how light in colour each beer was. As each blend was mostly brownish beer it was a shock to get honey gold out.
Above is a photo of both beers. The one on the left had poorer head retention. The one on the right was much fruitier, and had the perception of being sourer. The one on the left, which I think I recognise as the orval Brett, had more of a minerally character. Both beers were very dry. Whilst I'll wait a bit longer for things to marry, as they only had a week or two in the bottle, the beers seemed a bit disjointed. A sort of microbial mess. I preferred the sourer one which had a sort of generic red soft fruit flavour, whilst the minerally one was more harshly Brett at first and then made a suggestion of pink grapefruit squash to my ever listening taste buds. If the bitterness fades and the bugs start to get along a little better these could be nice, but at the moment they are just so so. A final thing to note is I was surprised how light in colour each beer was. As each blend was mostly brownish beer it was a shock to get honey gold out.
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