Homonym: chaff (Debris)
Chaff refers to the husks and debris that are separated from grains during the harvesting process. When crops like wheat or rice are threshed, the valuable seeds are separated from the inedible parts, which include chaff. This material is lightweight and often blown away by the wind or removed using a process called winnowing.
In agriculture, chaff can be used as animal bedding or as a component in compost. It is also sometimes used in the production of biofuels or as a filler in various products. While chaff is not nutritious for humans, it plays a role in sustainable farming practices.