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Blueberries

Recommended

Conventional cooling

Dynamic Cooling

Pre-cooling

De-greening

Ripening

General Tips for Blueberries

Storage temperatureRelative Humidity (RH)DurationPre-coolingSensitivity to ethyleneEthylene ProductionControlled Atmosphere
Storage temperature: 0° C
Relative Humidity (RH): 90%-95%
Duration: 1 – 2 weeks
Pre-cooling: Not required
Sensitivity to ethylene: High
Ethylene Production: Low
Controlled Atmosphere: Not recommended

Storage Temperature: Recommended storage temperature is 0 °C.

High Humidity: Use an air-cooler with a low air–product temperature differential (ΔT).

Storage Duration: Recommended period is 1 – 2 weeks.

Controlled Atmosphere: Not recommended — uneconomical for small volumes and provides limited benefit to total storage life.

Ozone: Installation of an ozone-generation device is advised to reduce microbial load.

Ethylene Removal: The use of an ethylene burner or absorption system is recommended.

Ventilation: A digitally controlled chamber ventilation system should be installed to regulate airflow and maintain gas balance.

IMPORTANT TIPS
  • Rapid cooling and consistent maintenance of the cold chain through all handling and distribution phases.
  • Maintain high humidity — blueberries are highly sensitive to dehydration and shrivel easily.
  • Regular use of ozone devices supports microbial control.
  • Continuous removal of ethylene is necessary to prevent premature aging.
  • Maintaining elevated CO₂ levels helps extend storage life and preserve product quality.