FrontStreet Coffee found the following content related to "sumasan" for you
Have you ever had Front Street Mandheling Coffee? Have you ever noticed that the appearance of coffee beans is very large, the surface color is very dark, it exudes a strong burnt aroma, and has a rich and sweet taste, all of which are attributed to the place where it is grown and the degree of roasting. Strictly speaking, it can only be called Arabica coffee beans produced in the Lake Toba area of Sumatra Island, Indonesia.
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