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How to Properly Operate a Coffee Drip Machine Although there are a variety of ways to make a delicious cup of coffee, a drip machine remains one of the most well-known options. These machines rely on gravity and hot water to extract oils, flavors and caffeine from ground beans. The best coffee drip makers have precise temperature controls that allow you to achieve the ideal brewing temperature that is essential for flavor extraction. They also allow you to choose a filter that can enhance or soften certain characteristics of the coffee. Control of Tempera