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:
Which has more caffeine, coffee or tea? Pound for pound, tea contains more caffeine than coffee, but you get 200 cups of tea per pound versus 50-60 cups of coffee per pound. Which method do you use to decaffeinate your teas? We use a natural ethyl acetate process to decaffeinate our Black Teas. In the ethyl acetate (EA) decaffeination process, the tea leaves are moistened with water and ethyl acetate, an FDA approved solvent.