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Fennel

Recommended

Conventional cooling

Dynamic Cooling

Pre-cooling

De-greening

Ripening

General Tips for Fennel

Storage temperatureRelative Humidity (RH)DurationPre-coolingSensitivity to ethyleneEthylene ProductionControlled 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.

IMPORTANT TIPS
  • 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.