Green Coffee
The stage between harvested coffee and roasting: anatomy, processing, drying, milling, grading, storage and quality control.
What is green coffee?
Green coffee is coffee seed that has been processed and dried but has not yet been roasted. Its physical structure and chemical composition provide the starting material for roasting.
From farm to roaster
A simplified chain is: plant → flower → cherry → harvest → sorting → processing → drying → dry milling → grading → storage → transport → roasting.
Why green coffee deserves its own subject
Processing decisions, moisture history, defects, density, variety and storage all affect how coffee behaves during roasting. A roaster is therefore working with an agricultural product, not a chemically uniform raw material.
Continue the chain
See coffee plant anatomy, harvesting, drying, grading and storage.
Continue exploring
Green coffee
Follow coffee from plant and cherry through processing, drying, milling and storage.
Green coffee →Coffee chemistry
Explore the compounds and reactions that shape roasted coffee.
Coffee chemistry →Coffee extraction
Connect grind, water, temperature, time, concentration and extraction.
Coffee extraction →Coffee Knowledge presents technical subjects as an educational reference. Terminology, grading systems and production practices can vary by country, producer, equipment and commercial context.