Important Parts of a Drip Coffee Machine Drip coffee makers are great for people who want a quick, easy cup of coffee. They function by heating filtered cold water in the reservoir, and then pouring it over coarsely ground beans. Some drip coffee makers come with a built-in bean grinder. https://www-coffeee-uk13681.blognody.com/30615072/buzzwords-de-buzzed-10-other-methods-of-saying-drip-coffee