Student brews up solution for coffee bean waste | University of Hawaiʻi System News“When coffee is processed, the bean itself (about 55% of the coffee cherry) is kept,” he said. “But the rest of the cherry—the husks, skins, and ...2025.09.05 “When coffee is processed, the bean itself (about 55% of the coffee cherry) is kept,” he said. “But the rest of the cherry—the husks, skins, and ...