| Appearance | Bright yellow to orange, irregular-shaped rhizomes |
| Size | 5-10 cm in length, 2-4 cm in diameter |
| Shape | Irregular, cylindrical, slightly curved or rounded |
| Color | Golden yellow or orange with a rough brown skin |
| Texture | Hard, rough outer surface, smooth inner texture |
| Moisture Content | 10% maximum |
| Odor | Strong characteristic odor |
| Taste | Pungent, slightly bitter, with earthy undertones |
| Density | 0.70-0.90 g/cm³ |
| Foreign Matter | 1% maximum |
| Impurity | 2% maximum |
| Ash Content | 7-9% (dry weight) |
| Total Curcumin Content | 3-5% minimum (based on dry weight) |