Skip to main content

Leeks

Recommended

Conventional cooling

Dynamic Cooling

Pre-cooling

De-greening

Ripening

General Tips for Leeks

Storage temperatureRelative Humidity (RH)DurationPre-coolingSensitivity to ethyleneEthylene ProductionControlled Atmosphere
Storage temperature: 0° - 0,5° C
Relative Humidity (RH): 92%-96%
Duration: 2-4 months
Pre-cooling: Air cooling
Sensitivity to ethylene: Medium
Ethylene Production: Very low
Controlled Atmosphere: Not recommended

Dynamic Pre-Cooling (Low Atmospheric Pressure – Wet Bulb Chambers): Specialized pre-cooling units designed for unpackaged produce immediately after harvest. These chambers control relative humidity and create low atmospheric pressure for rapid and uniform temperature reduction.

Dynamic Pre-Cooling (High-Suction Capacity Chambers): Ensures even air distribution and consistent cooling throughout the product mass, both for packaged and unpackaged produce.

Dynamic Cooling: Continuously regulates temperature, humidity, and gas composition at multiple points in the chamber 24/7, extending storage life by 15–20% beyond standard conditions.

Enhanced Cold Room: A flexible solution allowing existing refrigeration systems to perform gentle pre-cooling before switching to storage operation.

IMPORTANT TIPS
  • Dynamic Cooling is essential for maintaining leek freshness and quality.
  • Perform rapid pre-cooling in Dynamic Pre-Cooling Units and maintain the cold chain throughout handling and transport.
  • During commercial shipment, use crushed or flake ice inside the packaging to preserve freshness (not required for long-term storage).
  • Install ozone generators to reduce fungal load and microbial activity.
  • Monitor and manage CO₂ and ethylene levels to prevent softening and discoloration.
  • Use Modified Atmosphere Packaging (MAP) to extend shelf life.
  • Avoid storing leeks with ethylene-producing products (such as tomatoes, apples, or bananas).