I like celery with dips (e.g. blue cheese or ranch dip) but I am not sure what is the best way to prepare the celery petioles: Of course I clean them. I also remove the very lower, white parts (which are often more dirty and spotted) but what else? Remove the leafy top parts? What bothers me the most is the strings. Sometimes they are OK, sometimes they are annoyingly hard to chew. How to know? How to remove them?