Hi steemit friend:
In this post related to coffee. actually the origin of coffee is not black. Black color was born due to the roasting process (roasting) coffee beans experienced. The coffee tree itself does not produce black fruits, but is green or yellowish when the fruit is immature and turns red when the fruit (coffee cherry) is ripe and ready to be harvested. No black at all, correct that ....! if you want to know the process of coffee to black, you can read the articles on google and can open your phone.