Plums
Recommended
Conventional cooling
Dynamic Cooling
Pre-cooling
De-greening
Ripening
General Tips for Plums
| Storage temperature | Relative Humidity (RH) | Duration | Pre-cooling | Sensitivity to ethylene | Ethylene Production | Controlled Atmosphere |
|---|---|---|---|---|---|---|
|
Storage temperature:
0 °C
|
Relative Humidity (RH):
90% – 95%
|
Duration:
1 – 3 months
|
Pre-cooling:
Air cooling
|
Sensitivity to ethylene:
High
|
Ethylene Production:
Low
|
Controlled Atmosphere:
Not recommended
|
Storage Temperature: Recommended at 0 °C. |
High Humidity: Use an air-cooler with minimal air–product temperature differential (ΔT). |
Storage Duration: Suggested period is 1 – 3 months. |
Controlled Atmosphere: Not recommended for small production volumes—uneconomical and low benefit. |
Ozone: Install an ozone generator with appropriate ozone capacity to control microbial load. |
Ventilation: A specialized, digitally-controlled ventilation system should be installed for the removal of ethylene and CO₂ from the chamber. |
IMPORTANT TIPS
- Low temperatures can cause surface damage or chilling injury.
- Removal of ethylene from cold-rooms helps maintain product quality.
- Maintaining moderate CO₂ levels supports longer term storage.
- High CO₂ concentrations may lead to off-odours and quality decline.
- Use 1–10 ppm ethylene at 24 °C–26 °C and RH 90%–95% for 2–3 days for de-greening, when applicable.
- Disinfect cold-storage chambers prior to use.
- Apply wax or edible polymer coatings to the fruit surface before storage.