Trim the base and remove any damaged outer stalks
Rinse celery thoroughly under cold running water
Dry completely with a clean towel or salad spinner
Wrap celery tightly in aluminum foil
Store wrapped celery in the refrigerator crisper drawer
Keep celery away from ethylene-producing fruits
Replace the foil if it becomes wet or torn
For cut celery, store in an airtight container with a little water
Change the water regularly if storing cut stalks in water
Freeze celery only if using it later for cooking
Check celery often and remove any soft or slimy pieces