Originally Posted by Beerbrothas
Here is the white topping?
So this wine was sitting in that carboy, at the fill level we see when, two years ago, you racked and added k-meta/sorbate?
How old was wine when film developed? Assuming no film two years later?
Looks like flowers of wine to me...which if caught in time can be 'cured' by racking from bottom leaving the film behind and treating with standard dose k-meta. Flowers of wine is a classic development when you fail to top up properly and do not have adequate SO2 on board. Saw it develop in 14 hours when 250+ gallons of juice that supposedly had been dosed by seller at time of sale, and travel tank filled. Upon arrival 'home', an eight inch patch of flowers was seen. We just promptly transferred and checked SO2 level, far below normal, and treated accordingly.