How can I ensure that celery stays fresh in the refrigerator?

To keep celery fresh in the refrigerator, wrap it in aluminum foil or place it in a plastic bag with holes to allow for airflow. Store it in the crisper drawer of the refrigerator and make sure to keep it away from ethylene-producing fruits like Apples and bananas. Additionally, you can trim the ends of the celery and place it in a container of water to help maintain its freshness.