Hello, Looking for some advice because I must be missing something. We have had to dump our last few batches due to infection. Seems to be acetobacter based on my research. First bad batch was a Siason, didn't notice until kegged.
Since, we've eliminated o2 stone and sightglass from cold side plumbing. HX was broken down, cleaned plate by plate, reassembled loosely, soaked in caustic, then boiled in the BK along with TC fittings and new hoses for an hour. HX was reassembled and boiling wort is recirculated through cold side plumbing for 15 minutes prior to chill. Our last batch, we took 3 wort stability samples, one off the hot side, one post HX and one post FV.
Hot side sample shows no activity after 4 days, post HX and post FV were clean til day 3 when two dots of white mold showed up on the sides at top of wort.
I took whirlpool valve and sight glass off BK last night and found some crud, have everything soaking now in PBW. Maybe toward end of chill when temps go down, this could be a culprit? Another thought I had is that we have been bagging hops and tying to handle of BK so they dont float down and get scorched, when level goes down, bags are hanging there and draining......... Looking to see if anyone else has experienced this and if anyone has any ideas of what I could be missing, or if activity after 3 days in wort stability test is acceptable. I tasted the beer in FV last night and no off flavors....yet
Since, we've eliminated o2 stone and sightglass from cold side plumbing. HX was broken down, cleaned plate by plate, reassembled loosely, soaked in caustic, then boiled in the BK along with TC fittings and new hoses for an hour. HX was reassembled and boiling wort is recirculated through cold side plumbing for 15 minutes prior to chill. Our last batch, we took 3 wort stability samples, one off the hot side, one post HX and one post FV.
Hot side sample shows no activity after 4 days, post HX and post FV were clean til day 3 when two dots of white mold showed up on the sides at top of wort.
I took whirlpool valve and sight glass off BK last night and found some crud, have everything soaking now in PBW. Maybe toward end of chill when temps go down, this could be a culprit? Another thought I had is that we have been bagging hops and tying to handle of BK so they dont float down and get scorched, when level goes down, bags are hanging there and draining......... Looking to see if anyone else has experienced this and if anyone has any ideas of what I could be missing, or if activity after 3 days in wort stability test is acceptable. I tasted the beer in FV last night and no off flavors....yet
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