how to extract the most caffeine from coffee
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:
Since the organic solvents used to extract the caffeine from the beans are fairly volatile (the boiling point of dichloromethane is 40ÂºC to 103ÂºF), only trace amounts of solvent remain after the beans are dried. Furthermore, since the beans are roasted later, residual solvent should not pose a health threat.