This cold brew coffee maker was named the Best by the Hammacher Schlemmer Institute because it produced coffee with less acid than any other model tested. Unlike other units that made bitter coffee with a pH level of 6.17, the Best model produced a brew that had a pH level of 6.79, resulting in a less acidic and smoother tasting cup of joe. Panelists lauded the taste of the Best unit’s coffee while describing the brew of lesser units as “sludge” or “thin and flavorless.” It was also rated as the easiest model to use due to its easy to operate buttons, comprehensive instructions, and dishwasher safe components. It prepares seven cups of cold brew with mild, medium, or bold flavor concentration brewed at 25, 35, and 45 minutes, respectively. With a clear brewing chamber, glass carafe, stainless steel filter, and removable water tank. AC plug. Stainless Steel. 13 1/2" L x 19" W x 7" D. (7 lbs.)