I grew up with milk straight from the farm, literally, I would walk to the farm with my milk jug in the early evening and buy milk from that day's milking. But even that milk was pasteurized already. They did not sell untreated milk because of e-coli concerns even when we asked for it to make yogurt. I don't buy shelf stable milk because I can't stand the taste but DS doesn't mind it. He brings a water bottle to school every day but at the beginning of kindergarten he asked why he couldn't have milk or juice for his snack like the other kids and well, I really didn't see a reason why he couldn't have milk, especially since he can definitely use the extra calories so I started packing Horizon milk for snack. But in the paperwork we got from his teacher for first grade it stated that an extra juice or milk drink for snack is not necessary. I don't know if that means she doesn't want kids to bring a drink or just that it's optional. I didn't pack milk for snack today and I'll ask DS what the other kids had and we'll go from there.