Fennel
Recommended
Conventional cooling
Dynamic Cooling
Pre-cooling
De-greening
Ripening
General Tips for Fennel
| Storage temperature | Relative Humidity (RH) | Duration | Pre-cooling | Sensitivity to ethylene | Ethylene Production | Controlled Atmosphere |
|---|---|---|---|---|---|---|
|
Storage temperature:
0° - 0,4° C
|
Relative Humidity (RH):
92%-94%
|
Duration:
2-3 months
|
Pre-cooling:
Hydrocooling or Air cooling
|
Sensitivity to ethylene:
Low
|
Ethylene Production:
Very low
|
Controlled Atmosphere:
Not recommended
|
Dynamic Pre-Cooling (High-Suction Capacity Units): Specially designed systems that control temperature absorption rate and airflow velocity to ensure uniform cooling throughout the product mass. Suitable for both packaged and unpackaged fennel. |
Dynamic Cooling: Continuous, multi-point monitoring of temperature and humidity across the entire chamber volume ensures ideal storage conditions 24/7. Extends shelf life by 15–20% compared to conventional systems. |
Enhanced Cooling Chamber: A flexible system that enables the use of existing cold rooms and their equipment for both light pre-cooling and subsequent storage. |
Low-Airflow Continuous Water Circulation Chambers: Specialized units for high-humidity products, maintaining less than 25 air recirculations per hour. Humidity is stabilized through a constant water flow, ideal for preventing dehydration. |
- Ensure rapid pre-cooling in Dynamic Pre-Cooling Units and maintain a consistent cold chain throughout all handling and transport stages.
- Use Enhanced Cooling Chambers for combined pre-cooling and storage operations.
- Monitor temperature closely — avoid dropping below -1.1°C, as chilling injury can occur, leading to tissue browning and loss of freshness.
- Remove ethylene using absorbers or ventilation systems.
- Use Modified Atmosphere Packaging (MAP) to maintain product quality and reduce dehydration.
- Avoid storage with ethylene-producing products such as apples, pears, peaches, or nectarines.