I've used PBW to clean my serving kegs and my 10gal corny fermenter many many times before, sometimes leaving the PBW solution in for a week with no issues.
Recently, I filled up my 10gal corny keg with PBW solution. One thing I guess that may not have been normal - I shook it up twice immediately after filling it past the high point of krausen gunk on the side of the keg. I let it sit overnight and when I opened it up the following day, there was about a 2" ring around the top of the liquid surface on the walls of the keg that was grainy in texture. I filled the keg with more hot water to above this ring and let it sit one more night.
That didn't really do much. Scrubbing kind of eventually helps but it's a lot of elbow grease and abrasion. Tried barkeepers friend, and a vinegar solution, neither really seems to help much. Being that it was above the liquid surface, it seems it was due to contact with foam from shaking it up. Any ideas on anything else to help get it off?
Recently, I filled up my 10gal corny keg with PBW solution. One thing I guess that may not have been normal - I shook it up twice immediately after filling it past the high point of krausen gunk on the side of the keg. I let it sit overnight and when I opened it up the following day, there was about a 2" ring around the top of the liquid surface on the walls of the keg that was grainy in texture. I filled the keg with more hot water to above this ring and let it sit one more night.
That didn't really do much. Scrubbing kind of eventually helps but it's a lot of elbow grease and abrasion. Tried barkeepers friend, and a vinegar solution, neither really seems to help much. Being that it was above the liquid surface, it seems it was due to contact with foam from shaking it up. Any ideas on anything else to help get it off?