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How to Properly Operate a Coffee Drip Machine Although there are a variety of ways to make a great cup of coffee, a drip machine is one of the most sought-after options. These machines depend on gravity and hot water to extract oils, flavors and caffeine from beans that have been ground. The top drip coffee makers feature precise temperature control to attain the best brewing temperatures which are crucial for the extraction of flavor. You can also select filters that enhance or soften certain characteris