Nov 21, 2012 — That extra-thick, rich taste of Greek yogurt is popular, but you get it by creating lots of waste. For every pound of authentic strained Greek yogurt, there are 2 or 3 pounds of liquid whey. And getting rid of it can be expensive.
Nov 8, 2012 — Milk isn't just something you drink anymore. It's become a raw material, like crude oil, that's refined into more valuable products, such as sugar for infant formula and protein powder that's used in energy bars.