It takes 16 hours for the staff at La Colombe to craft its cold-brew coffee, but their hard work makes all the difference. Unlike your typical iced coffee, which is brewed hot and then chilled, cold-brew coffee involves steeping ground beans in water for hours on end (in the case of La Colombe, 16) and then carefully straining it to create a potent coffee solution. That concentrate can be mixed with water chilled to create a robust, rich iced coffee—sans the ice. That's precisely what happens before La Colombe's employees bottle up their Pure Black coffee, which comes in an old-time soda bottle and is sold all across the country.
La Colombe only has cafes in four major cities around the nation, and one of them isn't far from Rittenhouse Claridge in Rittenhouse Square. Since you're lucky enough to live close by, head here to grab a bottle of cold-brew or opt for a more traditional mug of coffee. La Colombe's baristas can transform their Fair Trade beans into practically anything you can dream up, from a classic pour-over coffee to a cafe mocha to an iced latte.