Important Parts of a Drip Coffee Machine Drip coffee makers work well for those who wish to make an instant cup of coffee. They work by heating filtered cold water in the reservoir, and then pouring it over coarsely ground beans. Some drip coffee makers include a built-in bean grinder. https://coffeeeuk77599.arwebo.com/53578734/14-questions-you-re-afraid-to-ask-about-drip-coffee