After you get the greens home...
Refrigerate the greens in their containers. Make sure you have a dry paper towel placed on top of the greens. They ill remain fresh up to a week. If you want to cut them you could do so and keep them on a paper towel base in a tight fitting tupperware container. Key is a very low humid environment in the refrigerator.
“Our micro greens are live greens, harvest them when you need them and have a shelf life of a week !”
Leeks and pea shoots can stay over a week !!
Do notover water or dampen the greens or keep them in a hot humid environment ; they may develop mold.