Fat Bastard
Brew Cvlt Doom
- Joined
- 11/8/11
- Messages
- 914
- Reaction score
- 226
It's in 2 batches, fermented with different yeasts (Coopers Pale Ale and WLP-001) in 2 different beers with 2 different hop profiles, fermented almost simultaneously in the same space @ 15-17 degrees C. At first I thought it was from the Cluster, which I've not used before in the Aus. Pale Ale, but it's showed up in an American Brown too. I've just checked the second batch of Aus Pale Ale, and it's there, but very much reduced, and may be the normal fruitiness of Cooper's yeast.
There's a 50/50 chance the 2 lots were fermented in the same cube, so I'm thinking infection. It doesn't taste bad or even unpleasant, but it is quite cloying. I can put up with it in the AuPA but not in the ABA.
I'd almost describe it as solventy, as it smells similar to Hoppe's #9 Bore Solvent (If youre a shooter, you'll probably know what that smells like), kind of floral and fruity rather than like acetone or petrol or paint thinners.
I can't think of any other commonalities which I haven't ruled out by trying the latest AuPA, which shares the same hops and grain as the other.
I clean my cubes with boiling Napisan and although I don't dismantle my taps because every single one I've pulled apart leaks after a few goes, I do run boiling napisan through them, soak them in starsan while operating them 10-20 times and finally boil them for 5-10 minutes before refitting to the cube before the ferment.
Your thoughts on this would be appreciated!
Cheers,
FB
There's a 50/50 chance the 2 lots were fermented in the same cube, so I'm thinking infection. It doesn't taste bad or even unpleasant, but it is quite cloying. I can put up with it in the AuPA but not in the ABA.
I'd almost describe it as solventy, as it smells similar to Hoppe's #9 Bore Solvent (If youre a shooter, you'll probably know what that smells like), kind of floral and fruity rather than like acetone or petrol or paint thinners.
I can't think of any other commonalities which I haven't ruled out by trying the latest AuPA, which shares the same hops and grain as the other.
I clean my cubes with boiling Napisan and although I don't dismantle my taps because every single one I've pulled apart leaks after a few goes, I do run boiling napisan through them, soak them in starsan while operating them 10-20 times and finally boil them for 5-10 minutes before refitting to the cube before the ferment.
Your thoughts on this would be appreciated!
Cheers,
FB