The best way to save celery is to keep it whole in the fridge and wrapped in aluminum foil, maintaining its freshness for a few weeks. On the other hand, chopped celery, although you can refrigerate it for several days, consider that the best way to preserve it would be to blanch and freeze it, although it later loses its texture. And to consider storing celery at room temperature, you should dehydrate it first. However, you could also make pickled celery and keep it inside the refrigerator to maximize its shelf life. Although you can freeze celery root, the best way to store it is in the refrigerator.