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Drip Coffee Machines Drip coffee machines are well-known because of their convenience and capacity to brew several cups at a time. Gravity and hot water are used to slowly extract flavors from the ground beans. They are usually coupled with glass or thermal carafes. The best drip coffee makers offer the following features: a showerhead that evenly distributes water over the grounds to ensure consistent extraction; and a temperature of water that is ideal for flavor extraction (198-202degF). We also look for an e