How does the process of making liquid coffee out of the beans work in a coffee machine? How does it extract coffee/caffeine out of it?

Question

How does the process of making liquid coffee out of the beans work in a coffee machine? How does it extract coffee/caffeine out of it?

In: Chemistry

Answer 1

Beans are usually pre-roasted and sometimes pre-ground. The grounds are soaked in hot water, where the flavor and color compounds and caffeine diffuse out of the grounds and into the water. The flavored, colored, and caffeinated water is filtered to remove the grounds, then served with creamer, sugar, and whatever other additions are desired.