Microgreen shelf life is not one fixed number. Crop type, harvest cleanliness, surface moisture, packaging, refrigerator temperature and how much the greens were handled all influence how long quality lasts.
Dryness at storage is critical
Free water on leaves accelerates quality loss and can support microbial growth. Harvest when the canopy is reasonably dry and avoid sealing dripping-wet greens into a container.
Cool quickly
Freshly cut greens continue respiring after harvest. Refrigerating them promptly slows deterioration. Keep storage temperature consistent and avoid leaving harvested trays or containers warm for extended periods.
Use clean packaging
A clean food-safe container protects greens from crushing and contamination. Do not pack so tightly that delicate leaves are bruised.
Different crops age differently
Sturdy radish, pea shoots and sunflower do not behave exactly like delicate amaranth or basil. A crop that looks excellent for several days in one system may decline sooner in another.
Discard when quality or safety is questionable
- Slimy leaves or stems
- Strong off odors
- Visible mold
- Excessive condensation paired with breakdown
- Leaves that are badly wilted or decomposing
For commercial growers
Validate shelf life for your own crop, packaging and cold chain rather than printing an aggressive date based only on someone else’s experience. Food-safety rules and labeling requirements may also apply depending on where and how you sell.
Related: How to Harvest and Store Microgreens.
Sources: Penn State Extension; University of Maryland Extension; general postharvest produce-handling guidance.
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