Bitterness

[elderbrewer]

I have brewed 4 batches in a row that turned bitter after 3 days in the keg. Tasting prior to kegging they were a golden color and tasted good, 3 days in the keg and they get darker and bitter. I have been very careful with time and temps. I have brewed 3 different recipes, they all taste the same. All pale ales. Any ideas?

 

[Sippin37]

Would you be able to post one of the recipes along with your mash temp and any other useful info? Then we can see what may have gone wrong.

 

[rhys333]

I had the same thing occur to multiple batches after bottling. I suspected an infection of some sort after running through many other possibilities. I noticed my lines were getting a fine powdery residue on the inside, also bottles with beer that turned bitter/dark. I switched the lines and no more issues... So far

 

[youreanimpulse]

Sounds like a nasty infection. I got something like that, dumped 2 batches in a row a couple summers ago. Didn't "figure it out", but my basement was a variable and I stopped fermenting beer down there. Never happened again.