Matt Ehresman demonstrates the delicate process of coffee roasting, which requires a form of chemistry, balancing the temperature, moisture, scent and sound of the coffee to achieve a specific flavor. (Photo by Janelle Retka)
Matt Ehresman demonstrates the delicate process of coffee roasting, which requires a form of chemistry, balancing the temperature, moisture, scent and sound of the coffee to achieve a specific flavor. (Photo by Janelle Retka)