store-bought juice with preservatives

Other Fermentables
1

I have a couple gallons of apple juice from the store, which I had intended to make into cider.

However, the label says it includes potassium sorbate, which I believe is supposed to stop yeast reproduction.

Is it possible to ferment it? (1 gallon batch) I was thinking about dumping it on a Montrachet yeast cake from a current cider ferment (1 gallon, also).  My intent with the yeast cake would be to pitch higher cell count, since they theoretically can’t reproduce with the sorbate.

Thoughts?

2

I occasionally hear of someone getting sorbated juice to ferment, but I’ve never had any luck, no matter how much yeast I throw at the stuff.