Why Are Coffee Beans Green Before Roasting?

Published: Oct 20, 2026 Author: World Gafei Last Updated: Oct/20/2026 169 views

Green coffee beans are the raw, unroasted seeds used to make brewed coffee. Learn why they’re green, how they become brown, and what happens during roasting.

When you think of coffee, you likely picture dark brown beans or rich black brew in a cup—but the journey starts much earlier. Long before your morning pour-over, those beans were green, odorless, and hard. If you've ever wondered why coffee beans aren’t brown from the start, you're not alone. The color change is just the beginning of a complex transformation.

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou's FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。