How should I store harvested zucchini?

Published: October 01, 2025
Updated: October 01, 2025

Proper storage preserves zucchini's crisp texture and fresh flavor after harvest. Zucchini should be stored immediately in perforated plastic bags in the warmest zone of the refrigerator upon harvesting and maintained at temperatures between 50°F and 55°F. Temperatures below can create chilling damage within 48 hours, resulting in pitting and mushiness.

Temperature Management

  • Ideal range: 50-55°F prevents chilling injury
  • Crisper drawer maintains consistent temperature
  • Avoid refrigerator doors with temperature fluctuations

Humidity Control

  • Perforated bags balance humidity and airflow
  • High humidity prevents shriveling
  • Excess moisture encourages mold development
Storage Method Comparison
MethodPerforated bagsTemperature50-55°FDuration
5-7 days
Quality Retention
Excellent
MethodUncovered in fridgeTemperature50-55°FDuration
2-3 days
Quality Retention
Moderate
MethodRoom temperatureTemperature70°F+Duration
1-2 days
Quality Retention
Poor
Based on USDA postharvest guidelines

Treat zucchini with care when preparing storage. Never wash it before refrigerating, as water promotes the decay within the stem crevices. Store the vegetables in a single layer, not stacked, to avoid bruising. I will check the zucchini every day while stored and remove any that have a soft spot immediately.

To preserve for the long term, freeze properly. Blanch the slices in boiling water for 1-2 minutes, then transfer them to ice water before freezing. This top enzyme activity changes the texture of the zucchini. Store in airtight containers after all excess air has been removed. Frozen zucchini will hold up best in cooked recipes, as it will release liquid moisture during the cooking process.

To ensure optimal freshness, use effective harvesting methods. Harvest zucchini in the early morning when temperatures are the coldest. Use a clean cut of the stem, leaving a 1-2 inch stem attached. Avoid mechanical injury to the skin, which is essential for moisture retention during storage.

Recognizing signs of decline early is vital. Chilled zucchini may show depressed spots and translucent areas. Mold appears as fluffy white areas, typically first appearing near the stem. If you see the skin beginning to wrinkle, that zucchini is dehydrated. Be sure to remove all affected vegetables from the refrigerator to minimize the risk of contamination to other vegetables.

Read the full article: When to Harvest Zucchini: Ultimate Guide

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