Important Parts of a Drip Coffee Machine Drip coffee makers are ideal for those who wish to make an instant cup of coffee. They work by heating filtered cold water in the reservoir and then pouring over coarsely ground beans. Some drip coffee makers come with an integrated bean grinder. https://coffeee89287.blogdal.com/30840649/the-most-convincing-proof-that-you-need-drip-coffee