Storing and caring for your microgreensYou can store microgreens for up to 2 weeks in the refrigerator. I recommend putting them in an airtight container lined with a paper towel to absorb moisture. Avoid washing them until just before eating.Storing and caring for your microgreensYou can store microgreens for up to 2 weeks in the refrigerator. I recommend putting them in an airtight container lined with a paper towel to absorb moisture. Avoid washing them until just before eating.