The Good: The Gourmia GCM6850 Cold Brew Coffee Maker makes carafes of chilled coffee quickly. It runs quietly and has less parts, and is easier to use than other fast cold brewers. The Bad: The coffee it brews is weak. Faint markings on its lid make it tricky to lock shut. The Bottom Line: Buy Gourmia's automatic cold brewer for fast, chilled coffee, not strong drinks with deep flavor. Coffee drinkers praise cold brew for its sweetness, depth of flavor, and lack of acidity. Its lengthy brew time is its biggest drawback. The $109 Gourmia GCM6850 Cold Brew Coffee Maker is one of a few kitchen appliances designed to speed up the process. Another is the $129 Dash Rapid Cold Brew. Both can whip up pitchers of coffee in minutes. However, Gourmia's machine has the edge since it's quieter and easier to use.As coffee makers go, this one is far from simple. At the bottom of the brewer is a squarish base that accepts a wide pitcher. Inside are numerous parts including a coffee fountain, filter basket and lid, plus another lid for the pitcher. It sounds complex, but the brewer's layout is elegant compared with the Dash Rapid Cold Brew's. The Dash Rapid splits the filter away from its pitcher, which means you have to handle more parts, and a base with two sockets.