Having chopped carrots, celery and onions on hand in the fridge is so convenient and can be a major timesaver. Mirepoix — a combination of chopped carrots, celery and onions— is a staple in many recipes and is used to flavor soups, stocks, sauces and other cooked dishes.
Properly stored, chopped carrots, celery and onions will keep well for at least a week in the fridge. Wash/peel the veggies thoroughly before chopping. Wrap the chopped veggies tightly in plastic wrap or aluminum foil, or place in a covered container or sealed plastic bag.
• Chopped Onions: will usually last for 7-10 days in the fridge.
• Chopped Celery: will keep for 1-2 weeks in the fridge.
• Chopped Carrots: will stay fresh for 2-3 weeks in the fridge.
See Also:
How to Freeze Peppers
Guide to Storing Vegetables: Where to Keep Vegetables
7 Popular Fruits and Vegetables That Last a Long Time