Parameter |
Specification |
Shape |
Oval or elliptical |
Size |
Varies by variety; typically 10-20 mm in length |
Color (Raw/Green) |
Greenish-blue to yellowish |
Color (Roasted) |
Light brown to dark brown (depending on roast level) |
Surface Texture |
Smooth when green, slightly rough after roasting |
Density |
Approximately 0.55–0.65 g/cm³ (green); lower when roasted |
Moisture Content |
8-12% (raw green coffee beans) |
Aroma |
Earthy, grassy (raw); nutty, fruity, chocolaty (roasted) |
Hardness |
Hard in green state; brittle after roasting |
Weight |
Approx. 0.2–0.4 grams per bean (varies by variety) |