Coffee gets its aroma and flavors from the roasting process. The length of the roasting process can also affect the caffeine level in a bean, the body of the coffee, the acidity of the coffee, and sometimes the intensity of the flavor.
Before coffee beans are roasted they are green and have almost no aroma, except for a natural earthy smell. The roasting process is what makes coffee beans into the delicious cup of coffee you’re drinking... Roast names and descriptions are not universal in the coffee industry. Going by the darkness of the color, however, is a common way to characterize the roast level of coffee beans.
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(Photo by Nathan Dumlao)
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