The Black+Decker Single Serve CM620B is part of the Coffee maker
test program at Consumer Reports. In our lab tests, Coffee maker
models like the Single Serve CM620B are rated on multiple criteria, such as those listed below.
Brew performance: The ability to reach 195° to 205° F for five or six minutes, the industry standard for optimal brewing and an indication of the coffee's concentration.
Convenience: Reflects ease of filling the reservoir, placing the filter, gauging the amount of coffee remaining, and cleaning up. It also reflects how clear we judged the controls.
Brew time: Our measurements of time, rounded to the nearest minute, to brew a pot of coffee in its regular cycle, using 40 oz. of water in those models that make 8- 14 cups of coffee. The one- or two-mug drip models are based on 10 oz. of water.