Hi, folks. Been playing around with cider recipes for awhile now and really love them. Made Dead Squirrels Turbo Cider recipe with variations with Caramel Apple, Cinnamon Vannilla, etc.
I made a basic 5% ABV cider or so with just using basic preservative free juice and nottingham ale yeast. Turned out nice and sweetened a bit with Lactose.
I have just made the same type of recipe but this time I also added concentrated Black Cherry flavoring. Organic, no chemicals, etc.
It fermented well. I racked it into a secondary and added gelatin finings for clearing. I have had it in the secondary for about a week now. It is a 5 gallon glass carboy and there is about 4 gallons of cider in there. It is developing white patches with bubbles in them throughout the top of the cider. They are not "mold" like, just white bubbly film that when you move the cider around a bit they dissolve again only to form again later.
Thoughts? Should I be concerned?