Cocoa
Then the beans are removed and piled in heaps, bins, or on grates where, during several days of "sweating", the thick pulp ferments until it thins and trickles off. The quality of the beans, which originally have a strong bitter taste, depends upon this sweating. If it is overdone they may be ruined; if underdone they have a flavor like raw potatoes and are susceptible to mildew.