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Frisee (Chickory) Lettuce

Recommended

Conventional cooling

Dynamic Cooling

Pre-cooling

De-greening

Ripening

General Tips for Frisee (Chickory) Lettuce

Storage temperatureRelative Humidity (RH)DurationPre-coolingSensitivity to ethyleneEthylene ProductionControlled Atmosphere
Storage temperature: 0,2° - 0,5° C
Relative Humidity (RH): 94%-96%
Duration: 3-4 weeks
Pre-cooling: Vacuum cooling or air cooling
Sensitivity to ethylene: Medium
Ethylene Production: Very low
Controlled Atmosphere: Not recommended

Low-Pressure Pre-Cooling Chambers (Wet Bulb Type): Specialized pre-cooling systems designed for unpackaged vegetables immediately after harvest. They control humidity and create a low-pressure environment that rapidly reduces product temperature.

Dynamic Pre-Cooling (High Suction Capacity Chambers): Custom-engineered systems ensuring optimal air velocity and temperature absorption for even cooling to the product’s core. Ideal for both packaged and unpackaged endives.

Low-Airflow Cooling Chambers with Continuous Water Circulation: Highly specialized cold rooms for products requiring very high humidity and low air circulation (below 25 air exchanges/hour). Moisture is maintained through continuous water flow.

Enhanced Cold Storage Chamber: A flexible configuration allowing an existing cold room and its mechanical system to function both as a light pre-cooling unit and a long-term storage chamber.

IMPORTANT TIPS
  • Pre-cool within one hour of harvest to minimize respiration and prevent early dehydration.
  • Maintain the cold chain throughout all handling and transport stages.
  • Install ozone generators to prevent mold and fungal growth.
  • Use modified atmosphere packaging (MAP) to extend freshness and preserve leaf color
  • Wash endives using a low-residue disinfectant to reduce microbial load and ensure hygiene.