Resources
Quality & Specs Guides
What the numbers on a green coffee spec sheet actually mean. Moisture, water activity, density, defects—and how they affect your roast.
Quality Metrics
Understanding Green Coffee Specs
Coffee Cupping & Q Grading: How Green Coffee Is Scored
The standard protocol behind every cupping score, what the ten Q categories measure, and how to read an importer's scores — from a 3× U.S. Cupping Champion.
Read guide →Green Coffee Moisture Content Explained
Why moisture percentage matters for roast development, shelf life, and weight loss—and the ideal range for specialty-grade green beans.
Read guide →Water Activity in Green Coffee
Why water activity matters more than moisture for shelf life, and ideal ranges by process.
Read guide →Density & Screen Size: What They Tell You
How bean density and screen-size distribution predict roast behavior, cup sweetness, and lot uniformity.
Read guide →Green Coffee Defects & Grading Standards
SCA defect categories, how to interpret a grading report, and why zero-defect protocols matter for roast consistency.
Read guide →How to Read a Green Coffee Spec Sheet
A field-by-field guide to the spec sheets we send with every offer—moisture, water activity, screen size, defect count, and cupping score.
Read guide →Keffa's QC Workflow: From Cherry to Container
Step-by-step look at how we sample, cup, grade, and re-cup every lot before it ships—from cherry intake through export.
Read guide →See our specs in action
Every Keffa coffee includes full spec data. Request samples and compare.