| Materials | Apparent volumetric mass (ρapp) in g·mL−1 | Actual volumetric mass (ρr) in g·mL−1 | Porosity (ε) | Average particle diameter (dp) in mm | Specific surface in m−1 |
| Jujube seeds before | 0.585 | 1.139 | 0.437 | 8.15 | 576.62 |
| Jujube seeds after | 0.597 | 1.304 | 0.423 | 8.08 | 548.13 |