How Do Drip Filter Coffee Machines Work? You may be amazed by the amount of components in this kind of coffee maker, especially if you're unfamiliar with it. It starts with a reservoir and a tube of water that leads to it and a heating component inside that heats water. https://wwwcoffeeeuk73731.blogdomago.com/29674476/how-drip-coffee-makers-changed-over-time-evolution-of-drip-coffee-makers