Roasting Plant Coffee has shops in New York City and Detroit with airport locations in San Francisco, Minneapolis, and Denver.
Patrons select green coffee that can be custom blended, then watch as it is roasted, ground, and brewed.
Caswell, who assembled the prototype with PVC pipe and an old Electrolux vacuum cleaner in his garage, predicts “just roasted, just brewed, just-for-you coffee” is the next wave. “We harness the power of the artisan and create a customized experience that will change the world of coffee forever,” he said.
Learn more: roastingplant.co.uk