You walk into McDonald's, order a Big Mac with a Coke. You head over to the fountain to fill-up your cup and take your first sip. The Coke has the perfect amount of sweet and fizziness... every single time.
How does McDonald's always get it right? Well, it's not by coincidence.
McDonald's Coke actually does taste better because they take special steps to ensure its quality. To start, the fast food chain has their soda shipped in stainless steel containers, not plastic pouches. This ensures freshness.
The fast food chain also makes sure that it's using good quality filtered water. This is especially important since they want to make sure that there aren't any stray flavors making the soda taste weird.
Lastly, McDonald's uses insulated pipes to send soda that is just the right temperature (just above freezing) from the machine to your cup.