What's the darkest coffee roast?
The darkest coffee roast is called "French Roast" or "Espresso Roast". This roast level is characterized by a dark brown color and shiny surface, with a nearly black appearance. The coffee beans at this stage have been roasted to the point where the natural sugars in the beans have caramelized, resulting in a smoky, bitter flavor. The coffee has very little acidity and a strong, robust taste. The coffee oils have risen to the surface, giving the coffee its shiny appearance. The caffeine content remains the same even if the roast level is dark, but the perception of caffeine can change depending on the roast level. Darker roasts tend to have a more intense, bold flavor, and less acidity, which can make the caffeine feel stronger.