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
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.