I purchased 2 gallons of Andersen Milk last week and both were sour. I am not sure what caused this but I did put a call into the Dairy and spoke to a very nice gentlemen who was not only sympathetic towards my issue but fixed the program right away. He mailed me a check for the cost of the milk I had to pour down the drain. It’s such a breath of fresh air to get such excellent customer service — thank you!