In most instances there is no meaningful difference between name brand milk and store brand milk.
Barring certain specialty products like organic, the gallon jugs of name brand versus store brand are basically the same, with the difference in price due mainly to marketing and advertising. Store brands are typically produced in plants operated by the name brand producer. There is a plant code on every jug of milk in the U.S. and you can see which major plant produced your milk. Beyond that, you can compare the nutrition facts label if you have concerns about milkfat content or any added vitamins or minerals to make sure it is a 1:1 product match. #finance