What happens to cocoa bean shells after winnowing?

After the winnowing process, in which machines crack the cocoa bean shells and separate them from the heavier nibs using blowers, the shells are collected as the primary by-product of cocoa manufacturing. These shells, which account for approximately 8–10 percent of the raw bean's weight, are repurposed for several practical uses, including fertilizer, mulch, and fuel. Additionally, they may be utilized as stock feed or in the preparation of beverages.1234