A decorative image for Chaff

Chaff is a byproduct of the coffee roasting process and plays a crucial role in the coffee industry. It is the outer skin or husk that surrounds the coffee bean. During roasting, the high heat causes the chaff to separate from the bean and float to the surface. It is then removed to prevent interference with the flavor of the coffee.

Chaff is often considered waste, but it has found various uses in different industries. In the coffee industry, chaff is sometimes used as a mulch or fertilizer in coffee plantations, contributing to soil health and overall sustainability. Additionally, some coffee farmers use chaff as animal feed, benefiting local livestock.

Despite being a byproduct, chaff has its own unique characteristics. It is lightweight and fibrous, allowing it to be easily separated from the coffee beans. Roasters often use specialized equipment to remove the chaff, ensuring a smooth and clean final product. While chaff may not directly contribute to the flavor of the coffee, its removal is an essential step in the coffee roasting process.