Coca-Cola on tap at McDonald's, like Guinness from Ireland, is allegedly the finest location to buy Coke. This is due to a variety of factors! To begin with, Coca-Cola syrup is provided to McDonald's in stainless steel canisters. Steel keeps the syrup better than plastic bags, which are used to distribute other soda syrups. The syrup circulates via cold insulated tubes, while the carbonated water is preserved at 33 to 38 degrees. The chilled Coke syrup-to-carbonated-water ratio is determined by how much ice melts in a drink over time, so don't worry about your ice watering down your Coke! On top of that, they offer one of the greatest water filtration systems available. Pure water equates to pure Coca-Cola!&