My take on Dr. Pepper is that its best from an aluminum can, The aluminum reacts with it, but because of the way that Dr. Pepper is supposed to taste, it actually enhanses the flavor, only when ice cold. Dr. Pepper from the plastic bottle is somewhere between the canned version and the fountian. and Dr. Pepper from the fountian just loses something.. Don't quite know what it is, Might just be that most of em were calibrated wrong for Dr. Pepper, as It requires a little bit higher syrup to carbonated water ratio. In my opinion anyway.