worlddivides
Well-Known Member
So I racked my orange blossom mead to tertiary a couple days ago and added 1 ounce of French oak cubes. Fermentation on my mead finished after 2 weeks (at a final gravity of 0.995) and there has been zero activity for almost 3 months. But about 12 hours after I added the oak cubes, I noticed that the volume in my carboy was about an inch lower than it should have been and there was a bunch of foam on the top. I pushed the side of the rubber bung to let some air in or out and heard a HUGE hissing sound and the mead quickly went back up a full inch. I thought this was odd, but left it as-is. The next day I noticed that the mead was again lower than it should have been, but by about half an inch instead of a full inch. I pushed the rubber bung to the side again and heard a hissing sound, but not as loud of a one, and the mead level went back to normal.
What's going on here? How could the oak cubes be producing CO2?
What's going on here? How could the oak cubes be producing CO2?