Removable 42oz water tank makes filling water easy. Marks on side of water tank suggest a perfect amount of coffee for each level of water. Water is heated with coil to generate consistent temperature required for great-tasting coffee. Water is spread evenly over every ground of coffee to ensure a consistent extraction. An adjustable flow meter lets you control the flow of water through the coffee bed. This machine is also fast. completing a full 42oz pot of coffee in about five minutes Consistency. speed. and easy-of-use are the hallmarks of this impressive machine. -