sounddoc
Active Member
Hi all,
I'm having trouble believing I'm the only one who's experiencing this. I've done about 10 brews over the last year in my Fermzilla and I love it. Last brew was infected from my mash tun valve (trust cleanliness, but verify...the last part is important) and I'm deep cleaning all my equipment. Something I've noticed on my Fermzilla's black plastic / rubber bits, particularly the butterfly valve, is some whitish crust after it dries. I use warm PBW solution to soak for an hour or so, then rinse and it shows up once it's dry. I'm able to scrub some of it off with a scotch-brite pad, but I don't want to damage it.
The picture says it all, although with the light here it looks a lot worse than it is. I've brewed all sort of ales and yeast, dry hopping, but nothing weird with adjuncts, etc...
Thanks for any insight. I believe the materials used is ABS plastic. Only cleaning chemicals to touch it have been PBW and Star-San. Our water is very hard and our appliances have some scaling (did I just answer my own question?) The only treatment I use are campden tablets. Ph in the mash is usually around 5.2. That's another story...
I'm having trouble believing I'm the only one who's experiencing this. I've done about 10 brews over the last year in my Fermzilla and I love it. Last brew was infected from my mash tun valve (trust cleanliness, but verify...the last part is important) and I'm deep cleaning all my equipment. Something I've noticed on my Fermzilla's black plastic / rubber bits, particularly the butterfly valve, is some whitish crust after it dries. I use warm PBW solution to soak for an hour or so, then rinse and it shows up once it's dry. I'm able to scrub some of it off with a scotch-brite pad, but I don't want to damage it.
The picture says it all, although with the light here it looks a lot worse than it is. I've brewed all sort of ales and yeast, dry hopping, but nothing weird with adjuncts, etc...
Thanks for any insight. I believe the materials used is ABS plastic. Only cleaning chemicals to touch it have been PBW and Star-San. Our water is very hard and our appliances have some scaling (did I just answer my own question?) The only treatment I use are campden tablets. Ph in the mash is usually around 5.2. That's another story...