| Property | Specification |
| Size | 8 - 12 mm in length |
| Weight | 0.1 - 0.15 grams per bean |
| Shape | Oval, slightly flattened, or kidney-shaped |
| Color | Green (unroasted); varies from light to dark brown when roasted |
| Surface Texture | Smooth, slightly wrinkled or slightly oily (when roasted) |
| Shell Thickness | 0.5 - 1.5 mm |
| Moisture Content | 10 - 12% |
| Density | 0.55 - 0.75 g/cm³ |
| Odor | Fresh, grassy or slightly nutty in green beans; roasty or chocolatey in roasted beans |
| Taste | Bitter, nutty, sweet, fruity, or floral depending on variety and roast |
| Cracking Resistance | Moderate (depends on roasting process) |
| Purity | Free from foreign materials like stones, dust, and debris |