Pomegranates
Recommended
Conventional cooling
Dynamic Cooling
Pre-cooling
De-greening
Ripening
General Tips for Pomegranates
| Storage temperature | Relative Humidity (RH) | Duration | Pre-cooling | Sensitivity to ethylene | Ethylene Production | Controlled Atmosphere |
|---|---|---|---|---|---|---|
|
Storage temperature:
6° - 7° C
|
Relative Humidity (RH):
85%-90%
|
Duration:
2-4 months
|
Pre-cooling:
Air cooling
|
Sensitivity to ethylene:
Very low
|
Ethylene Production:
Low
|
Controlled Atmosphere:
Recommended
|
Storage Temperature: Recommended storage temperature is 6 °C – 7 °C. |
Storage Duration: Recommended period is 2 – 4 months. |
Air Circulation: Use inverter-type fans with digital control to ensure continuous, uniform airflow throughout the chamber 24/7. |
Ozone: Installation of an ozone-generation device is recommended to reduce microbial load. |
Controlled Atmosphere: Recommended gas composition: 2 % – 5 % O₂ and 3 % – 6 % CO₂. Controlled Atmosphere slows ripening and maintains flesh firmness for up to 180 days. |
Dynamic Pre-Cooling: A detailed study of temperature absorption time and airflow velocity ensures uniform cooling to the product core. |
Dynamic Cooling: Multi-point monitoring continuously regulates temperature, humidity, and gas levels across the entire chamber volume to maintain ideal storage conditions. |
- For post-harvest pest control, keep pomegranates at 20 °C for 2–3 days, then cool to 2 °C for 24 hours before transferring them to 6–7 °C storage.
- Maintain a uniform temperature within the storage chambers — the use of Dynamic Cooling is essential.
- Cooling should be achieved through low-velocity air circulation to prevent chilling damage.
- Avoid temperatures below 6 °C, as they may cause cold injury.
- Cold disinfestation is an effective post-harvest insect control method.
- Maintain medium CO₂ levels (around 6 %) to preserve quality.
- Use modified-atmosphere bags for extended shelf life.
- Monitor sugar content at harvest — ideal value: 16 °Brix, measured with optical refractometers.
- Disinfect cold-storage chambers thoroughly before use.