I have on three occasions purchased a half-gallon of The Sassy Cow Organic 2% milk at a local retail market here in Chicago. On each occasion, regardless of the expiration date being well in the future, and in this case August 13, the milk is sour by the time I get 1/3 way through it. I have purchase many other brands of milk both organic and non, at this market and at others. I have never had this problem. I don't intend to waste more money on this product. It is clearly not properly produced or stored. Again, never happened with other dairy's products at this store, only with Sassy Cow. And 100% of the time, I had to throw out most of it within a few days.