Whey Too Much: Greek Yogurt's Dark Side
Whey is a well-known by-product of cheese, one that finds its home as fertilizer, feed for pigs, and even protein supplements for humans. Whey is also a by-product of Greek yogurt, but it's not the same kind -- it's acidic, and yogurt companies are struggling to find uses for it. With the Greek yogurt industry booming, a solution to the problem is needed, and quick.
But it’s not so easy to integrate acid whey into the workings of the farm. The silage Rejman feeds his cows, for example, can only soak up so much before becoming unmanageable slop — “like dropping water on your pizza,” he says. It’s also sort of like feeding your cows candy bars — they like it, but shouldn’t eat too much or it upsets their digestive system. It’s a problem that Rejman admits defies easy solutions. “How do you handle all the whey without screwing up the environment?”
Photo by Andy Wright