I have had batch of cider sitting in a fermenter for the last 5 months. The first month was primary and the last 4 have been secondary, to let it settle out. I didn’t add any sugar or other additives. Just yeast and pectic enzyme. I just noticed this morning that there are small white specs developing on the top. This is my first batch of cider so I’m a little clueless. Any thoughts on what this is?
Wild yeast action? Hard to tell…
It could be. It is sitting next to a 1 gallon carboy that I let naturally ferment.
Looks almost like a petri dish/agar plate with spores.