- Dec 17, 2017
- Reaction score
Today I discovered a white film on top of my not-quite-full 3 gallon carboy of a Lodi Zen from this past September. Free so2 was measured as 4--too low, I know. However, there were no off odors or tastes. Re-racked to 3-gallon and added one crushed camden tablet. My 15 gallon fermenter also was starting to get a film--40% covered. I skimmed what I could, added four crushed tablets dissolved in tap water into it and toped of both vessels with CO2 to displace as much O2 as possible.