All three of these fruiting vegetables are chilling-sensitive: store them too cold and they pit, soften and develop surface damage. The cold chain is therefore about keeping them cool but not cold, moving them quickly, and protecting glossy skin from bruising. This guide covers the cold chain and packing for eggplant, zucchini and cucumber.

Quick answer: All three are chilling-sensitive and held cool, not cold: eggplant ~10–12°C, zucchini ~7–10°C, cucumber ~10–12°C, all at high humidity (~90–95% RH). They are perishable and shipped by reefer at their respective cool setpoints, handled gently to protect glossy skin. HS: eggplant 0709.30, zucchini 0709.93, cucumber 0707.00 (cucumbers and gherkins).

Cool, never cold

Below their safe thresholds, these crops suffer chilling injury — pitting, water-soaked patches, softening and faster decay. So each is held at its own cool temperature, not at the near-freezing settings used for many vegetables. High humidity keeps them firm and prevents shrivel.

CropStorage tempHumidity
Eggplant~10–12°C90–95% RH
Zucchini~7–10°C90–95% RH
Cucumber~10–12°C90–95% RH

Ethylene awareness

Cucumber and other fruiting vegetables are sensitive to ethylene (which accelerates yellowing and softening), so they are kept away from high ethylene producers. Good airflow and the correct cool temperature protect quality.

Packaging formats

  • Single-layer cartons for eggplant and cucumber to protect glossy skin.
  • Cartons or trays for zucchini; baby grades cushioned.
  • Liners/films to retain humidity where appropriate.

All three are graded by size and gloss and handled gently to avoid bruising and scuffing.

Loading and shipping

Each crop ships by reefer at its cool setpoint (not cold), with airflow and a temperature recorder. Mixed loads must respect each crop’s temperature and ethylene needs.

Quality preservation checklist

  • Hold each crop at its own cool temperature; never below its chilling threshold.
  • Keep humidity high (~90–95%) to prevent shrivel.
  • Keep away from high ethylene; ensure airflow.
  • Pack gently in single layers; grade by size and gloss.
  • Ship by reefer at the correct cool setpoint with logging.

Frequently asked questions

Why can’t these crops be stored cold?

They are chilling-sensitive – cold storage causes pitting, softening and faster decay.

What temperatures are right?

Eggplant ~10-12 degrees C, zucchini ~7-10 degrees C, cucumber ~10-12 degrees C, all at high humidity.

Are they ethylene-sensitive?

Yes – especially cucumber; keep away from high ethylene producers.

How are they packed?

Mostly single-layer cartons to protect glossy skin, graded by size and gloss.

How are they shipped?

By reefer at each crop’s cool setpoint with airflow and temperature logging.

How to cite this page

PEI Trade. “Egyptian Eggplant, Zucchini & Cucumber Packaging & Cold Chain.” peitrade.com, 2026. https://peitrade.com/egyptian-eggplant-zucchini-cucumber-packaging-cold-chain/

Sources

  • Post-harvest science — chilling sensitivity and cool storage temperatures for eggplant, zucchini and cucumber.
  • Industry guidance — single-layer carton packing, ethylene management and reefer shipping.

This page is part of our Egyptian Eggplant, Zucchini & Cucumber Export Guide hub.

Ship Egyptian fruiting vegetables that arrive firm and glossy with PEI Trade. Correct chilling-sensitive cool storage per crop, gentle grading and packing, ethylene awareness, and logged reefer transit. Contact: sales@peitrade.com · WhatsApp +20 109 911 1918 · www.peitrade.com