Color of coffee beans?!

Question: Most roasted coffee beans are dark brown in color. However, I twice had coffe beans (from the Dominican Republic and Costa Rica) that were completely black and very shiny. Is it a different bean or a diffrent processing technique?

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Answers: Most roasted coffee beans are dark brown in color. However, I twice had coffe beans (from the Dominican Republic and Costa Rica) that were completely black and very shiny. Is it a different bean or a diffrent processing technique?

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The color of a roasted coffee bean has to do with how the bean was roasted. Mostly the temperature of the coffee bean when the roasting process ended.

This also has an effect on the sheen, but the variety of the bean plays a role here too. Oils in the bean come to the surface as the temperature approaches 500 degrees F during the roasting process resulting in a shiny bean.

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color

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During roasting, caramelization occurs as intense heat breaks down starches in the bean, changing them to simple sugars that begin to brown, changing the color of the bean. Sucrose is rapidly lost during the roasting process and may disappear entirely in darker roasts. So, more than likely it was the roasting process that gave you a darker color bean, resulting in a more flavorful, intense flavor.

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a non roasted bean is light green in color

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They are red when ripe on the tree

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It's in the roasting, they must have been roasted more.

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