How to Store Cut Onions?

The peculiar flavor of onions gives our casseroles, stews, soups, and other dishes life. Onions are a flexible and delectable addition to any meal. But whenever we cook with onions, we frequently have extra parts that need to be stored. Knowing how to preserve chopped onions will help you save money and guarantee that you always have them on hand.

We offer advice on how to store half an onion and the best methods for maintaining the freshness of chopped onions with both short- and long-term storage options. We’ll wrap off by sharing one of our go-to recipes, which uses chopped onions that have been kept. You’ll eat better food while saving money with our help.

How to Store Cut Onions?

Storing Cut Onions

Sometimes you won’t be able to use the sliced onions you’ve prepared during the coming week, and the refrigerator won’t be a good solution under those circumstances.

To avoid throwing your leftovers out, have some plans for long-term storage. Fortunately, there are a few alternatives to the refrigerator that you may use to keep onions.

Long-Term Use and Storage

This section explains how to preserve the health of your sliced onions if you don’t use them immediately. The chopped onions can be quickly pickled, allowing you to enjoy them months after you first cut into them. You’ll also discover instructions for freezing your onions.

With a tried-and-true recipe, we demonstrate how to use your preserved onions to please your family. With our assistance, you’ll have enough onions all year long.

Make Your Cut Onions Freeze

One of the simplest storage methods you’ll come across if you have onions that need to be kept for a long time is to pack them well and put them in the freezer.

Your frozen onion pieces may have a different texture and will be less crisp than when fresh, but they will still be just as nutrient- and flavor-rich and can be used in various meals.

To freeze onions, first, pat them dry with a paper towel before putting them in a freezer bag or container. To lessen the chance of freezer burn, remove as much air from the container as you can, and mark the bags with the date.

The freezer’s corner is where you should keep the containers. To utilize your frozen onions, put them in the refrigerator a day or so before you intend to use them, and this will allow them to defrost gradually. Onions from frozen can occasionally be used straight to a meal and still turn out well.

Can the Onions

Can the Onions Canning is a tried-and-true method of food preservation that will help you prevent the deterioration of your sliced onions.

Get as creative as you like with your pickled herbs and tastes, but you only need a few supplies and some Mason jars to get the job done. Your sliced onions will remain tasty and fresh for many months if you can use them.

Place the chopped onions in a colander and cover with canning salt. After waiting for an hour, rinse the onions. Bring the vinegar, sugar, and onions to a boil in a big pot.

Ten minutes later, turn off the heat once the mixture boils. Put Mason jars with the onion mixture inside, and give a headspace of 1- 2 inches. Use a blunt stirrer to massage the onions and gently remove air bubbles.

The lids and rings are screwed on and tightened. To put the jars in a pressure canner, use a jar lifter. At 1,000 feet, processing takes around 10 minutes; use a canning chart to adjust for your altitude. After a day of cooling, store the jars somewhere dark and cool.

Keep Half of the Onion wrapped in Plastic

It’s a common practice to cut full yellow or red onions in half on a cutting board and use the halves separately. How will you use the other half? Find a solution that extends the storage life of sweet onions and different onion kinds, so you have time to use them. Onions are too delicious and expensive to throw away.

Plastic wrap is helpful in this situation. Once chopped, onions must be sealed in plastic wrap to prevent oxidation and keep freshness. Make sure the onion is healthy and undamaged before taking half of it.

Make careful to completely enclose the onion, not just the cut side, to prevent air from reaching the inside. Wrap the onion tightly. Store the onion in a cooler part of your refrigerator to stop the onion from sprouting.

Before cutting into the onion, when you pull the half out to use it, look for any dark spots or signs of mold or bacteria in the outer layers. While a plastic bag can be used in place of plastic wrap, mesh bags should never be used to store sliced onions. Use this approach to keep chopped scallions and onions as well.

How to Make a Delicious Meal with Your Stored Onions?

What do you do with all the preserved chopped onions in your freezer or basement now? Frozen onions can be used in omelets, soups, stews, and other dishes, and we also like to use them in vegetarian omelets. The omelet is made out of this world by adding onions, which give it a bite and depth of taste.

  • Four beaten eggs
  • One tablespoon of olive oil
  • One chopped green bell pepper and 1/2 cup chopped onion
  • One red bell pepper, chopped
  • One tablespoon of margarine or butter
  • Salt
  • The black peppercorns
  • 1/22 teaspoon garlic powder

Over medium heat, add olive oil to a nonstick skillet and sauté the onion for about three minutes. Add the bell pepper and cook for one or two more minutes. Get rid of the heat.

Add the peppers and onion to the eggs using a slotted spoon, then beat well. Place the pan on medium heat after cleaning it. Ensure the margarine or butter is completely melted and coated on the pan’s surface. Add the egg concoction.

Salt, pepper, and garlic powder should be added to the eggs. Let the egg mixture cook evenly until the bottom is done but not browned. After serving, fold the omelet in half.

What are Onions Grown on Short, Moderate, or Long Days?

Because onions are pretty sensitive to the amount of daylight they receive, choosing kinds that will flourish in your area is critical. If you don’t, your onions will produce very few or no bulbs.

At altitudes up to 36 degrees, the South is where short-day onions grow best. Short-day sours include Texas Super Sweet, Yellow Granex, White Bermuda, and Texas Early Grano. In contrast, short-day pungent varieties include Red Creole, White Creole, California Early Red, and Ebenezer.

The ideal latitudes for intermediate day (also known as day-neutral) onions to thrive are between 34 and 38 degrees north, while they may tolerate a broader range of spaces overall. Super Star, Southport Yellow Globe, White Portugal, Italian Red, Stockton Red, and Australian Brown are some pungent intermediate kinds. Walla Walla, Candy, and Red Candy Apple are sweet types of examples.

Latitudes above 36 north are ideal for growing long-day onions. Early Yellow Globe, New York Early, Ailsa Craig, Red Zeppelin, Copra, and Yellow Globe Danvers are aromatic extended-day varieties. White Sweet Spanish and Yellow Sweet Spanish are two types that are sweet and suitable for long days.

What are the Advantages of Onions for Health?

Onions have a low-calorie count, a lot of fiber, vitamin C, calcium, potassium, and other good health nutrients.

Onions’ aromatic sulfur compounds give them their pungent smell and provide several health benefits.

According to research, frequent onion consumption may have health advantages such as cardiovascular protection, enhanced bone density, anti-inflammatory activity, and a decreased risk of numerous malignancies. To get these advantages, though, you should consume at least half a medium onion each day (sporadic consumption, while better than nothing, is not as effective for reducing the risk of various health problems).

More substantial amounts of the compounds that lower the risk of cancer can be found in aromatic onion cultivars such as Western Yellow, New York Bold, and Northern Red.

When Can Onions be Planted?

As soon as the soil can be handled in the spring, plant onions if you’re starting from seed (approximately 4-6 weeks before the last frost). Plant as soon as possible to give large bulbs time to mature. If you provide some cold protection, such as a polytunnel, cloche, or hard frame, you can plant onion seeds even earlier (10–12 weeks before the last frost). The seeds should be sown 1/4 to 1/2 inch deep.

Use fresh seeds because onion seeds don’t last as long as seeds from other kinds of vegetables. Onions will sprout at temperatures between 50 and 80 degrees Fahrenheit, although their ideal germination temperature range is 60 to 65 degrees Fahrenheit (15 to 18 degrees Celsius) (10-27 Celsius).

Onion planting in the fall is also an option if your environment is mild. Fall crops should be planted six to twelve weeks before the first anticipated frost. Because the growing season is longer in the fall, larger bulbs will often result from the planting. You might need to offer some security, like a cold frame.

You can also lengthen the growing season by starting to grow your own transplants indoors 8 to 12 weeks before the weather is ideal for planting outdoors. Don’t send the transplants out too early; if they experience cold conditions followed by warm weather, they may believe it is their second spring and run away (produce flowers and seeds). To avoid this issue, don’t transplant till the weather is warmer.

When planting sets, ensure they are solid and free from rot or disease. Any brittle, squishy, or moldy bulbs should not be used. Depending on the temperature where you live, plant onion sets pointy side up, about halfway into the ground, in March or April. After planting, thoroughly water the area.

What Kind of Caring do Onions Require?

If you expect a hard frost, cover seedlings with row covers or offer them other cold protection. Several weeks after they have sprouted, thin out seedlings to the proper spacing (3 inches apart for small bulbs, 6 inches for large bulbs, in between for medium bulbs). The trimmings can be consumed as green onions.

Regular watering is essential, especially in hot, dry weather, but avoid overwatering the soil. Watering should be reduced a few weeks before harvest because onions will store better if they are allowed to dry out. When the tops of the onions turn yellow and start to die back, stop watering altogether.

Regularly weed. Because onions don’t produce a lot of foliage, they can’t effectively shade out weeds and compete with them. When weeding, exercise caution because onions’ thin roots are vulnerable to harm.

Once the weather has warmed up, mulch application can help conserve moisture and inhibit weed development.

Get rid of any diseased or bolting bulbs (flowering). Onions thrive in relaxed environments (55 to 75 degrees Fahrenheit) during the early stages of growth and in warmer climates (70 to 80 degrees Fahrenheit), while plants generate larger bulbs.


Before putting your cut onions in your refrigerator, you may wonder how to store them. While they last for months, keeping them properly can increase their lifespan. Use air-tight packaging to avoid damage and smell, and place them on a cookie sheet with sides. You can store them for up to eight months. You can also use freezer bags. If you don’t want to buy a whole bag, place your onions in individual freezer bags.