Write an article based on this "Dry the cilantro completely. Keep in the refrigerator."
If the cilantro is even a little moist, you should dry it with clean paper towels or by putting it through a spin in a salad spinner. Cilantro will go bad much faster if the leaves are still wet, so it is crucial that you get as much water off as possible. To be on the safe side, the best option is to spin the cilantro in a salad spinner and spread the stems out in a single layer on a dry kitchen towel. Place the towel in direct sunlight for a few hours to further dry the cilantro. Cover the container and place it in your refrigerator. It should stay fresh for two to three weeks. Check the cilantro periodically during this time. Look through the sides of the container if using clear plastic, or quickly remove the lid and peek inside if using a container made of tinted plastic. Remove any wilted or discolored cilantro. If you notice any moisture, dry the container and send your cilantro for another spin in the salad spinner.