| Appearance | Fine, free-flowing powder |
| Color | Bright yellow to deep orange-yellow |
| Odor | Characteristic earthy, slightly bitter aroma |
| Taste | Warm, bitter, slightly peppery |
| Mesh Size | 80 to 100 mesh (or as required) |
| Moisture Content | Max 8% |
| Curcumin Content | Typically 2% to 5% (varies by variety/grade) |
| Bulk Density | 0.50 – 0.65 g/cm³ |
| Ash Content | Max 7% |
| Acid Insoluble Ash | Max 1.5% |
| Foreign Matter | Nil or within permissible food limits |
| Volatile Oil Content | Min 0.5% |
| Solubility | Not soluble in water, dispersible in oil |
| Shelf Life | 12 to 18 months when stored in dry conditions |