Brettanomyces Custersianus Stout

ImageIt has taken me WAY too long to do a write up of this beer. In BrewMate I called it “Mike and Me” as this was a batch brewed for the birthday of a guy I work with and I got to keep half of it AND cover my costs.

Appearance: I put this right on the line between brown and black. If held up to the light some small deep red hints can  be seen. The head starts big but after about 5 minutes comes down to a compact half finger of tan/cream, which leaves suds all the way down the pint pot.

Aroma: I never thought that I would hear something like this, let alone say it myself. The beer smells of new books( yes I did just say new bloody books) and dried fruit of the kind you may well find in your muesli. Apples,pears and peach/nectarine, but all very subtle.

Taste: Hops up front, the 30gr of Northdown FWH in 10 litres of beer shine through. Roasted malt coming through a close second with Custersianus bringing up 3rd with a beautiful mouth coating feel of dried fruits which not so much give way, as meld with coffee in 4th and a slight hint of tartness that leaves the briefest of tingles.

The beer has a mouth filling sensation that doesn’t come from carbonation, which is low. After a few minutes of not having a sup, the after taste could be the younger more interesting brother of that greatest of Irish beers, with slightly restrained dark malts which come back every time you salivate.

Overall: Great body for a beer so low in alcohol,great, silky smooth. I am very sorry indeed that this was the last bottle, but will be looking forward to re-brewing this with a few small tweaks. Next time I shall go for a slightly higher percentage of flaked oats and a slightly higher OG.

Brettanomyces Custersianus, in my opinion, is great for dark beers. It does not fight for superiority in the flavour tables,it acts instead as a mediator.

Again, thank you very much Derek.


Recipe Specs

Original Gravity Final Gravity

Colour (SRM / EBC)

Bitterness Alcohol by Volume
1.039 1.008 36.0 / 70.9 39.1 IBU 4.0%

Brewhouse Specs

Recipe Type Batch Size Boil Time Efficiency
All Grain 10.0 Litres / 2.6 Gal 60.0 min 75.0%


Name Type SRM Percentage Amount
Pilsner Grain 1.7 80.00 % 1.40 Kg / 3.09 Lbs
Flaked Oats Adjunct 1.0 8.00 % 0.14 Kg / 0.31 Lbs
Dark roasted barley Grain 690.0 6.29 % 0.11 Kg / 0.24 Lbs
Black Roasted Barley Grain 500.0 2.86 % 0.05 Kg / 0.11 Lbs
Carafa II malt Grain 415.0 2.86 % 0.05 Kg / 0.11 Lbs


Name AA% Amount Use Time
Northdown 5.0% 30.00 g / 1.06 oz First Wort 60 mins



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