If you’re a beverage maker looking for caffeine, though, there’s also another source: Big factories in China.
Those factories accomplish, with lots of noise, heat, and pressure, the same thing that a coffee tree does very quietly. They arrange atoms of some of the most common elements in nature — carbon, hydrogen, oxygen, and nitrogen — into the particular structure of caffeine.
Most of the caffeine that’s used in the beverage industry is this synthetic version. [link]