An electric drip coffee maker can also be referred to as a dripolator. It normally works by admitting water from a cold water reservoir into a flexible hose in the base of the reservoir leading directly to a thin metal tube or heating chamber (usually, of aluminum), where a heating element surrounding the metal tube heats the water. The heated water moves through the machine using the thermosiphon principle. Thermally-induced pressure and the siphoning effect move the heated water through an insulated rubber or vinyl riser hose, into a spray head, and onto the ground coffee, which is contained in a brew basket mounted below the spray head. The coffee passes through a filter and drips down into the carafe. A one-way valve in the tubing prevents water from siphoning back into the reservoir. A thermostat attached to the heating element turns off the heating element as needed to prevent overheating the water in the metal tube (overheating would produce only steam in the supply hose), then turns back on when the water cools below a certain threshold. For a standard 10-12 cup drip coffeemaker, using a more powerful thermostatically-controlled heating element (in terms of wattage produced), can heat increased amounts of water more quickly using larger heating chambers, generally producing higher average water temperatures at the spray head over the entire brewing cycle. This process can be further improved by changing the aluminum construction of most heating chambers to a metal with superior heat transfer qualities, such as copper.
Try a new way to brew coffee if you’re tired of the same-old, same-old. We offer a variety of ways to brew up tasty hot beverages to fill your favorite coffee cup. Choose from standard drip machines with high volume carafes or durable thermal carafes. Pour-over brewers come in manual and automatic versions to create fast, hot cups of java goodness. Automatic versions heat water to industry standards in mere seconds and allow plenty of contact between hot water and beans to develop the coffee essences you love. Manual pour-over brewers have everything you need but the hot water to make your own coffee wherever you are. Order a teapot or automatic kettle to make quick cups of coffee without waiting for a machine to brew it for you. Go retro with a siphon-style coffee maker. You never have to use the stove for the electric versions of siphon brewers. A flip of a switch starts the process. Hot water vapor pushes through the top of the appliance to soak the ground coffee beans, and then the brew slowly drips back down into the carafe for a perfect cup of coffee.