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Peaches

Recommended

Conventional cooling

Dynamic Cooling

Pre-cooling

De-greening

Ripening

General Tips for Peaches

Storage temperatureRelative Humidity (RH)DurationPre-coolingSensitivity to ethyleneEthylene ProductionControlled Atmosphere
Storage temperature: -0,2° - 0,2° C
Relative Humidity (RH): 85%-92%
Duration: 2-6 weeks
Pre-cooling: Air cooling
Sensitivity to ethylene: Moderate
Ethylene Production: Very high
Controlled Atmosphere: Recommended

Storage Temperature: Recommended storage temperature is −0.2 °C.

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

Storage Duration: Recommended period is 2 – 6 weeks.

Ozone: Install an ozone-generation unit to ensure effective microbial control.

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

Ventilation: A digitally controlled ventilation system should be installed for consistent air exchange.

Air Circulation: Use inverter-driven fans with digital control to maintain uniform airflow throughout the chamber 24/7.

Controlled Atmosphere: Recommended gas composition: 2 % – 5 % O₂ and 3 % – 6 % CO₂. Controlled Atmosphere delays ripening and maintains flesh firmness for up to 75 days.

Dynamic Pre-Cooling: Detailed study of temperature absorption time and airspeed ensures uniform core-to-surface cooling across the entire load.

Dynamic Cooling: Continuously monitors multiple control points and automatically adjusts environmental parameters across the entire chamber for optimal uniformity.

IMPORTANT TIPS
  • Rapid pre-cooling to 1 °C (core temperature) and maintenance of the cold chain throughout all distribution stages.
  • Keep storage temperatures uniformly below zero within the chamber.
  • Dynamic Cooling application is essential for high-quality preservation.
  • Use low-velocity air movement to achieve gentle and even cooling.
  • Maintain medium CO₂ levels to support quality retention — concentrations above 20 % cause off-flavors and surface browning.
  • Remove ethylene continuously to prevent premature ripening.
  • During harvest, firmness should exceed 3.5 kg force, measured with an 8 mm penetrometer tip.
  • Sugar content at harvest should be below 9 °Brix, measured with optical refractometers.
  • Disinfect cold-storage chambers before use.
  • Avoid external odors, as peaches easily absorb environmental smells.