| Parameter | Specification |
| Appearance | Fine powder |
| Color | Bright yellow to golden yellow |
| Odor | Earthy, aromatic |
| Flavor | Slightly bitter, earthy |
| Particle Size | 90-95% passes through 300 μm sieve |
| Moisture Content | ≤ 12% |
| Curcumin Content | ≥ 2-5% (depending on variety) |
| Ash Content | ≤ 9% |
| Volatile Oil Content | ≥ 3% |
| Adulteration | Free from artificial colors, starch, or foreign matter |
| Packaging | Food-grade, air-tight, and moisture-proof bags or containers |