Coffee Bean Grades and Specifications Explained

Published: Oct 07, 2026 Author: World Gafei Last Updated: Oct/07/2026 103 views

Learn how coffee beans are graded by size, altitude, processing method, and defect count. Discover what makes specialty-grade beans different.

When you buy a bag of coffee, have you ever wondered how those green beans were sorted, graded, or even why some cost so much more than others? The differences aren’t just marketing — they’re based on measurable factors like bean size, growing altitude, processing method, and how many defects made the cut. These criteria determine not only quality but also flavor potential.

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 。