Papagayo
Well-Known Member
I've got some small white splotches developing on the top of one 5 gal. carboy in secondary. If I gently shake the carboy they sink but then come back. No noticeable smell and no effect on the flavor, but I'm concerned that this is film yeast. I just measured the free SO2 and it is at 20 ppm. I was planning on bringing it up to 40 ppm for bulk storage, but some books I have read say that when you develop film yeast, you can stop it early by adding 100 ppm of SO2. Does anyone have any experience with this. I'm inclined to add 80 ppm more SO2 so as to save the cider, but I don't want to give it a horrible flavor. Perhaps I should wait to see if the film gets much worse. At this point it doesn't cover much more than 25% of the surface. The stuff is whitish and looks almost like a soapy covering.
Advice and experience would be greatly appreciated.
Advice and experience would be greatly appreciated.
