Ever have milk stout beer? Great stuff. Left Hand Brewing
's Milk Stout has won awards, and people want clone recipes
I've had some cranberry whey wine, and it absolutely looks like wine. Not opaque at all. I have some whey, so I'm trying to figure out how it is done.
There is still the other question of, "Does lactose ferment?" That simpler question explains the beer. The more complex question involves working with whey.