Both of these milks are from Kroger at the grocery store Both are 2% milks. One expires in a few days, the other expires in 6 months Pay attention to what you’re buying, the one with the longer expiration date is “engineered milk,” this process disrupts the natural balance of the milk by heating it to a “near sterile” point killing the bacteria, including the good bacteria. Known as ultra pasteurization The high heat and near-sterile significantly reduce the bacterial load, leading to a much longer shelf life