Onions, as we know, belong to the allium family and are a familiar food that contains various essential nutrients for the human body.

They are rich in vitamins and minerals and have a low-calorie content. By consuming onions, you can supplement your body with a significant amount of minerals, fiber, and vitamins. Notably, this food is also high in vitamin C and rich in vitamin B, including folate and pyridoxine.

Additionally, the onion bulb contains a mineral that many people lack: potassium. It also contains organic sulfur compounds and a good amount of quercetin.

The benefits of onions are numerous: they help prevent cancer, lower the risk of stomach and colorectal cancer, contribute to diabetes treatment, and more. Fisetin and quercetin, flavonoid antioxidants found in onions, can inhibit tumor growth. Onions are also good for cardiovascular health, bone strength, digestion, and the immune system.

Knowing how to store onions properly helps us keep this food for an extended period without worrying about spoilage and waste.


Onions, if not stored properly, can easily spoil.

Storing Onions in the Freezer

The good news is that you can keep onions in the freezer at a temperature between 1°C and 4°C to prolong their shelf life. Fresh onions can be stored for up to 8 months this way. Cooked onions can be frozen for up to 12 months.

You can peel, slice, or chop the onions as desired. Then, place them in an airtight container, freezer bag, foil, or plastic wrap. When needed, simply take out the required amount and use it.

Storing Onions in an Airtight Container

To store onions for an extended period and keep them fresh, place them in an airtight container and store them in a dry, dark place.

Put the onions in the container and seal it shut. Store the container in a dark, cool place, away from direct sunlight and moisture. Every week, check the container and remove any onions showing signs of rot, softness, or discoloration to prevent the spread to other onions. The ideal storage temperature for onions is between 5 and 15 degrees Celsius to maintain freshness and hygiene.

Storing Onions in a Fabric Bag

Storing onions in a fabric bag is simple. Use a bag that resembles a pair of pants, and follow these steps:

Place an onion into the bag, and tie a knot or secure the opening to ensure the onion is enclosed. Continue adding onions and securing the bag until it is full or you have used all your onions. Once the bag is full, you can hang it in your kitchen or a well-ventilated area. This saves space and provides excellent storage conditions for onions, keeping them dry and airy, preventing moisture buildup, and reducing the risk of spoilage.


If you have unused onions, store them in mesh bags, paper bags, or even socks.

Removing Excess Outer Layers

Remove the excess outer layers by rubbing the onions between your palms. The loose skin that comes off should be discarded.

Storing Onions in Mesh Bags, Paper Bags, or Baskets

If you have unused onions, store them in mesh bags, paper bags, or even socks. Placing each onion in its own bag will prolong its life compared to storing them together. Ensure there is adequate ventilation to prevent moisture buildup and spoilage.

Alternatively, you can put onions in a pair of tights, tying a knot after each onion. This method not only separates the onions but also provides a dry and well-ventilated environment, absorbing moisture and prolonging their shelf life.

Notes When Buying Onions

– Avoid buying onions that have sprouted, as they won’t stay fresh for long.

– Also, refrain from choosing onions with a strong odor, indicating rot or decay beneath the outer layers.

– The best onions have dry, flaky skin that can be easily peeled away.

– Do not store onions with potatoes. The moisture from potatoes can cause onions to spoil, and potatoes can absorb the onion’s flavor, affecting the taste of your dishes.

According to GĐXH

Frequently asked questions

To keep root vegetables fresh and sprout-free, the article suggests a few key steps: first, choose firm, unbruised vegetables with intact skins. Then, clean and dry them thoroughly, removing any dirt or moisture that could promote decay. Store them in a cool, dark, and well-ventilated place, ideally in a single layer to prevent spoilage. Additionally, consider using a natural preservative like vinegar or lemon juice, and regularly check and rotate your stock to ensure freshness.

Root vegetables are a diabetes-friendly food choice as they are rich in nutrients and low on the glycemic index, which means they don’t cause a rapid spike in blood sugar levels. They are also a good source of fiber, which can help manage blood sugar and cholesterol levels.

Diabetics can enjoy a variety of root vegetables, including sweet potatoes, carrots, beets, turnips, and radishes. These vegetables are packed with vitamins, minerals, and antioxidants, offering numerous health benefits.

To maximize the nutritional value of root vegetables, the article recommends minimal processing. Lightly steaming, roasting, or stir-frying are ideal cooking methods. Avoid overcooking, as it can lead to nutrient loss. It’s also beneficial to consume the skins, where many of the nutrients and fibers are concentrated.

While root vegetables are generally healthy for diabetics, portion control is important. Even though they are low on the glycemic index, they still contain natural sugars. It’s best to consult with a healthcare professional or a dietitian to determine the appropriate amount and types of root vegetables to include in your diet.
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