Mac & Coke

"My buddy's wife works at McDonald's HQ in greater Chicago. The reason fountain Coke at McD's tastes better than other forms is they refrigerate the concentrate from the time it's made until it's used. This preserves the flavor. It holds the flavor better and it stays until it's mixed with the "soda water" in the machine. Other forms of Coke are mixed months earlier and go relatively "stale" from the time of bottling to consumption."

Via Deadspin. Boobs if you click the link.