Interdependence. Interdependence is a key idea in science. As students learn about science, they begin to understand that the earth is not a group of discrete parts but a continuous environment existing over time as well as place.
In order to remove the caffeine from coffee beans, the beans are washed in a solvent (a liquid capable of dissolving substances), transferring the caffeine from bean to liquid in a process known as extraction. To extract caffeine from whole coffee beans, the following solvents can be used:
The decaffeination process involves treating the coffee beans prior to roasting. The international standard of decaffeination requires that 97% of the caffeine must be removed. The EU sets this standard at 99.9%. Many other factors can determine the caffeine in Starbucks Decaf Coffee. Note: This listing is for Starbucks Brewed Decaf Coffee.