Harvest is where a clean growing process becomes food. Use clean tools, keep the crop out of the growing medium, and manage moisture carefully after cutting.
Cut above the growing medium
University of Maryland Extension recommends using clean, sharp scissors or a knife and cutting stems just above the top of the growing medium once true leaves have expanded.
Wash—or wait to wash?
Home-use guidance commonly recommends rinsing before eating. Penn State notes that washing delicate microgreens can shorten post-harvest life, so one option is to store them cold and wash shortly before use. Commercial food-safety practices may differ and should follow applicable rules.
Drying matters
Excess surface moisture encourages deterioration. If greens are washed before storage, remove as much free water as practical without crushing the crop.
Keep harvested greens cold
Maryland Extension says harvested microgreens can be refrigerated for up to about 10 days in home use. Penn State commercial guidance notes that cold, dark storage can extend shelf life compared with ambient conditions, while condensation and temperature swings reduce quality.
Simple home workflow
- Harvest with clean, sharp tools.
- Keep soil or growing media out of the cut greens.
- Handle gently to avoid bruising.
- Keep the crop cold after harvest.
- Wash with clean drinking water before eating if it was not washed earlier.
Next: read Food Safety Basics.
Sources: University of Maryland Extension; Penn State Extension.
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