Shipdit
Member
- Joined
- Jan 29, 2014
- Messages
- 13
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- 0
First, I will acknowledge that everyone thinks I am crazy, but here goes...
I have brewed close to 50 all grain batches in the last two years, and have had consistent success from brew day through kegging. However, I have had a nunmber of recent batches (4 of the last 9) that have tasted great when going from primary to secondary, even better when going from secondary to keg, but then develop off-flavors during carbonation. I would describe the flavors as metallic or astringent, or like there is a bitterness present that is not a hops bitterness, but a rather unpleasant one.
At first I thought it could be carbonic acid, so I started force carbing for a longer period at a lower PSI rather than a higher PSI for 2-3 days. This did not address the issue.
I have been trouble shooting for months, trying to isolate the offending variable, and have even gone so far as to replace my CO2 tank, regulator, and splitter. People have told me that this equipment cannot be the culprit, as no unfriendlies would be able to survive in the presence of CO2. If this is the case, can anyone think of another explanation for what might be happening here? I am militant in my cleaning and sanitizing practices, and have even replaced my beer lines. I'm running out of options, and would appreciate any advice!
I have brewed close to 50 all grain batches in the last two years, and have had consistent success from brew day through kegging. However, I have had a nunmber of recent batches (4 of the last 9) that have tasted great when going from primary to secondary, even better when going from secondary to keg, but then develop off-flavors during carbonation. I would describe the flavors as metallic or astringent, or like there is a bitterness present that is not a hops bitterness, but a rather unpleasant one.
At first I thought it could be carbonic acid, so I started force carbing for a longer period at a lower PSI rather than a higher PSI for 2-3 days. This did not address the issue.
I have been trouble shooting for months, trying to isolate the offending variable, and have even gone so far as to replace my CO2 tank, regulator, and splitter. People have told me that this equipment cannot be the culprit, as no unfriendlies would be able to survive in the presence of CO2. If this is the case, can anyone think of another explanation for what might be happening here? I am militant in my cleaning and sanitizing practices, and have even replaced my beer lines. I'm running out of options, and would appreciate any advice!