| Property | Specification |
| Appearance | Dark green to brown, brittle sheets |
| Moisture Content | 10-15% |
| Texture | Crispy or chewy |
| Odor | Ocean-like, slightly salty |
| Taste | Umami, salty |
| Color | Green to black |
| Shape | Sheets, flakes, strips, powder |
| Size | 5-10 cm (varies) |
| Bulk Density | 50-150 kg/m³ |
| Water Activity | 0.2 – 0.6 |
| Ash Content | 10-30% |
| Nutrient Content | Rich in iodine, calcium, iron |
| Shelf Life | 6-12 months |
| Storage Condition | Airtight, cool, dry place |