| Property | Specification |
| Appearance | Small to medium-sized leaves, typically dark brown to black |
| Shape | Rolled or twisted (depends on the processing method) |
| Color | Dark brown to black |
| Texture | Slightly coarse or fine, depending on the grade |
| Size | Leaf size varies from broken, fannings, to full leaf |
| Aroma | Strong, malty, sometimes floral or woody, depending on origin and processing |
| Moisture Content | Typically 3-7% |
| Bulk Density | 0.3 to 0.4 g/cm³ (may vary depending on processing) |
| Solubility | Partially soluble in hot water (leaf particles may remain) |
| Taste Profile | Strong, astringent, slightly bitter with malty or floral notes |
