Frisee (Chickory) Lettuce
Recommended
Conventional cooling
Dynamic Cooling
Pre-cooling
De-greening
Ripening
General Tips for Frisee (Chickory) Lettuce
| Storage temperature | Relative Humidity (RH) | Duration | Pre-cooling | Sensitivity to ethylene | Ethylene Production | Controlled 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. |
- 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.