Coke at McDonald's is'so different' from regular cola, but no one can put their finger on what makes it so tasty. The syrup and bubbling water in McDonald's Coke are not pre-mixed, experts at Ranker.com explain.
The two ingredients are stored separately and combined together as they are poured from the tap, leading to a fresher taste. McDonald's also makes sure syrups are standardized, making sure there's 40 grams of sugar in every small cup of cola.