George Howell, specialty coffee’s patron saint and owner-operator of the Boston-based roastery that bears his name, really wishes you’d stop ordering cold brew.
“If you’re into the flavors of coffee, you’re not into cold brew. It’s as simple as that,” Howell says.
This isn’t to say all chilled coffee is bad. Cold brew is made by mixing coffee grounds and water, letting them mingle at room temperature for 12 to 24 hours and running the resulting concentrate through a filter. Iced coffee, meanwhile, is made using normal hot coffee brewing methods and chilled using something like a Coldwave. The two are entirely different products.

Coffee writer, Youtuber and former World Barista Champion James Hoffmann agrees with Howell. He describes the flavors of cold brew, which are developed over a longer brew process without the use of hot water, as oxidized or “off.”
“When you brew with cold water you tend to get a more generic flavors out of the coffee.”
“Hot water is really important to extracting all of the soluble flavor compounds in coffee,” Hoffmann says. “When you brew with cold water you tend to get a more generic flavors out of the coffee. Brewing with cold water makes it harder to tell by taste where a coffee might have been grown.”