I don't know if this has been covered before or if it is a stupid question - probably both.
On a few of my meads and ciders, after they have dropped completely clear, I have noticed millions of infinitesimal bubbles crawling up the sides of the carboy and forming a little foamy ring at the bung. Sometimes the airlock bubbles, sometimes not. I just noticed this again with a cider I made a month ago.
Now, I had thought that perhaps this was simply degassing due to a change in temperature/pressure/moon phase etc. Since it has happened when the mead is clear, I assumed it wasn't restarted fermentation or *gasp* bacterial.
Has anyone experienced this before?
On a few of my meads and ciders, after they have dropped completely clear, I have noticed millions of infinitesimal bubbles crawling up the sides of the carboy and forming a little foamy ring at the bung. Sometimes the airlock bubbles, sometimes not. I just noticed this again with a cider I made a month ago.
Now, I had thought that perhaps this was simply degassing due to a change in temperature/pressure/moon phase etc. Since it has happened when the mead is clear, I assumed it wasn't restarted fermentation or *gasp* bacterial.
Has anyone experienced this before?