How long are chopped onions good for?

In this brief guide, we are going to answer the question “How long are chopped onions good for” with an in-depth analysis of the shelf life of chopped onions. Moreover, we are going to discuss the different ways to spot spoiled chopped onions.

So without much ado, let’s dive in and figure out more about it.

How long are chopped onions good for?

Chopped onions can be stored in the refrigerator at or below 40 degrees Fahrenheit for 7 to 10 days. However, keep in mind that chopped onions should always be stored in an airtight bag or container.

Thus, peeled diced onions should be stored in air-tight bags or containers in the refrigerator to keep them from inducing smell in other foods.

It is worth mentioning that the figures mentioned above are the estimated shelf life of chopped onions.

What is the optimum temperature to store chopped onions?

You should always store your chopped onions at 40 degrees Fahrenheit or below. Bacterial growth takes place at a faster pace between the temperature of 40 and 140 degrees Fahrenheit, therefore it is always advised to store your chopped onions at a lower temperature to preserve their freshness for a long time.

How long do chopped onions keep at room temperature?

Peeled and chopped onions last for about 2 hours when kept at room temperature. Chopped onions will not only lose their moisture over time but can also become the favorite spot for many bacteria and other microbes to grow upon.

You should discard the chopped onions that have been left in open for more than 2 hours as bacterial growth takes place at a faster pace between the temperature of 40 and 140 degrees Fahrenheit, therefore there are greater chances of the chopped onions being already contaminated with bacteria when left out for more than 2 hours.

Moreover, if the temperature of the surroundings is about 90 degrees Fahrenheit, then the process of spoilage takes place at a faster pace and it is recommended to discard chopped onions that are left out in the open for more than an hour at 90 degrees Fahrenheit.

How long are chopped onions good for in the freezer?

Raw chopped onions, if kept in an air-tight container or air-tight plastic freezer bag, can last for up to 8 months in the freezer. 

Thus keeping the chopped onions in the freezer will increase their shelf life considerably owing to the cool temperature of the freezer that halts the bacterial growth on the chopped onions.

How to thaw frozen chopped onions?

You can either thaw your frozen chopped onions by leaving them in the fridge or if you are in a hurry, you can thaw them by immersing the plastic zipper bag having frozen onions in a bowl of cold water.

You can also add the frozen chopped onions directly to the pan without thawing them first (in case you are going to use it in a recipe) but do not forget to adjust the cooking time according to the frozen chopped onions.

You can read the health benefits of onions here.

Different ways to spot spoiled chopped onions

There are a couple of indicators that point out spoiled chopped onions. You should consider the appearance, texture, and smell of the chopped onions to reach a  final verdict on whether or not they have gone bad.

Appearance

If you spot a mold or other organic growth or dark spots on your chopped onions then it means that your chopped onions have gone bad and the best thing you can do in this scenario is to get rid of them.

It is worth mentioning that you should refrain from smelling chopped onions that have molds on them as molds can produce mycotoxins that if they enter your body even via inhalation can disrupt your gut microflora thereby weakening your immune system.

Moreover, if you see some green sprouts beginning to grow on the onion, it shows that your onions are long past their prime time and will go bad in some time.

Texture 

If you feel something slimy, squishy, or gooey while touching the onions then it means that your onions have gone bad and it is better to discard them. 

Smell 

If you smell some off-smells like musty smell while taking a sniff test of your chopped onions then it means that your chopped onions have gone bad.

If microbes somehow found their way to your chopped onions and have spoiled it then the best thing you should do is to discard them.

Conclusion

In this brief guide, we answered the question “How long are chopped onions good for” with an in-depth analysis of the shelf life of chopped onions. Moreover, we discussed the different ways to spot spoiled chopped onions.

Citations

https://www.allrecipes.com/article/how-to-store-onions/
https://www.cookinglight.com/eating-smart/nutrition-101/are-cut-raw-onions-fridge-poisonous
https://www.eatthis.com/how-to-store-onions/
https://www.healthline.com/nutrition/how-to-store-onions
https://www.stilltasty.com/fooditems/index/17826

Mahnoor Asghar is a Clinical Nutritionist with a bachelor's degree in Nutrition and Dietetics. She is compassionate and dedicated to playing her part in the well-being of the masses. She wants to play a fruitful role in creating nutrition and health-related awareness among the general public. Additionally, she has a keen eye for detail and loves to create content related to food, nutrition, health, and wellness.