Every kilogram of strained yogurt leaves about two kilograms of acid whey behind. It cannot go down the drain, it is hard to dry, and the 2013 "dark side of Greek yogurt" story was about it. Where it goes now, and what is changing.
Market-size estimates range from US$19 billion to US$38 billion depending on definition. Greek exports hit €559 million in 2025. Here are the figures, their sources, and what they do and do not measure.
