film

I have a blackberry and black cherry melomel that I started brewing in back in early August. Recently during my checks I've noticed a thin, seemingly crystalline, iridescent film on the surface that is strong enough to pin some bubbles beneath it. I've been trying to identify it to make sure...

I have a 6 gallon batch of pinot noir made from fresh grapes. MLF finished a month ago. I split the batch into 6 1-gallon carboys and put a different oak in each one. I looked at my Heavy toasted American oak one today, and saw what looked like a film on top. Smells and tastes fine as far as I...