Time for a quick check-in with the Blueberry and Cherry variants of our own cider, and both vessels are doing OK.
The Cherry is popping the airlock slightly more frequently at every 8 seconds or so, and has a consistent layer of fine foam bubbles on top as well as an audible hissing quality.
The Blueberry is also popping away, but a little more slowly, maybe every 12 seconds. What’s interesting is the continuous formation and disappearance of foam; she’ll spend a couple of minutes building a fine layer of bubbles and then that layer disappears again over the following minutes. No idea what’s going on in there, but I hope it’ll produce some excellent flavours.