Winnowing the Wheat from the Tares
Okay, when we are dealing with cocoa beans, we aren’t dealing with wheat. However, when most people think of winnowing, the biblical reference to winnowing the wheat from the tares is the first thing that comes to mind. In ancient times, wheat would be thrown into the air on a windy day. The wind would blow away the light chaff (the paperlike coating around the wheat), and the heavier wheat would fall straight down and be caught on a mat.