How Do Drip Filter Coffee Machines Work? You might be surprised by the sheer number of components in this type coffee maker if not familiar with it. It starts with a reservoir that has a water tube leading up to it and a heating element inside which heats the water. https://wwwcoffeeeuk71680.blogdiloz.com/29752051/there-are-a-few-reasons-that-people-can-succeed-in-the-drip-coffee-industry