Q&A for How to Store a Cut Onion

I would just put them in a dry, dark place. Keep them in the packaging they came in, or store them in a plastic container.

If you have the room in your freezer, then that´s an effective method. If you can, freeze the onion spread out on a sheet and then place it in containers, that way you can pick out the exact amount you need later.

Yes! I always chop one or two onions into small pieces and store them in a Ziploc bag; they'll keep very well for a week or so. You can store them in plastic containers if you prefer, but it can be a challenge to get the onion smell out of the container.

They keep very well for about a week. Once they start getting soft, time to chop a new one!

You can store them in plastic containers in the refrigerator, but it can be a challenge to get the onion smell out of the container afterward. I've found the best way to keep chopped unions is in a Ziploc bag in the refrigerator.

I would definitely cover the cut onion before storing it in the fridge. The strong odor of the onion will permeate everything else in the fridge, and it takes a lot of work to get rid of it!

No, this tends to make the onion very greasy. Try storing it in an airtight container with the cut side down. Use quickly.