How To Preserve Green Onions

In this brief guide, we are going to answer the question “How to preserve green onions?”, and discuss the different methods of preserving green onions and the potential implications of preserving green onions.

How To Preserve Green Onions

You can preserve green onions by using a variety of methods as used for other vegetables like freezing, drying, etc.

How to freeze green onions

Green onions, unlike other vegetables, do not require blanching before freezing, so they are perfect for when one is short on time or just lazy. Green onions are one of those vegetables that can just be chopped up and frozen without the time and hassle of blanching.

There are two ways to freeze green onions that work very well. 

  • The first way is to pack them into freezer containers and use them as needed. These little containers happen to hold the perfect amount for larger meals for instance soups and casseroles.

Another handy way to freeze and use green onions is to fill them into clean plastic or glass bottles and store the bottles in the freezer. This involves the following steps:

  • The green onions are washed 
  • The green onions are pat dry with paper towels or cloth.
  • The green onions are then chopped as per the size needed. 
  • A fresh clean glass bottle or jar is taken.
  •  The chopped green onions are dropped into the jar.
  •  The jar is then sealed properly. 
  • Finally, the chopped green onions are frozen or stored in the fridge.

Whenever one needs them for cooking, simply it’s suggested that the onions are shaken and some frozen onions are taken out of the bottle. This method is great for when you only need small amounts at a time.

How to dry green onions

Drying green onions is just as simple as freezing. They dry quickly and store easily. The green onions can be dried conventionally outdoors under the sun, or a dehydrator is used for drying green onions, but they can also be air-dried or dried in the oven on low heat.

If one chooses the dehydrator method,  the following steps are required:

  • Cleanly wash the green onions.
  • Wipe the bunch of green onions using a clean dry cloth or paper towel.
  • Take a clean knife and chop the green onions as the required size needed.
  •  spread the onion pieces out on trays either with or without the tray liners (the ones included with most dehydrators for fruit leather). 
  • A few pieces will likely fall through the slats while drying if you don’t use the liners, which isn’t a big deal if one is using a dehydrator as a top-drying model.

Onions dry fairly quickly, depending on the humidity in the air area, so check them often once one starts the dehydrator. Store dried onions in glass jars or plastic bags. They will last for months (if not years) and can be used however you like them.

If the smell is a little overpowering as they are drying. If the smell is too bothersome, you can set the dehydrator outdoors on a patio or in a garage till they’re finished.

Flash Freeze

Flash freezing is another method that can be used to store and preserve green onions. The steps that are involved in using this method of preservation are as follows:

  • Clean the onions with water.
  • Pat them dry with a clean cloth or paper towel. 
  • Take a clean dry knife and chop the bulb off and the leaves separate. 
  • Now chop the green onions into pieces.
  • Place the bulbs and chopped pieces on a baking sheet.
  •   Place the tray along with the sheet placed on it in the freezer. 
  • Only leave the onions for 1 hour which is long enough to freeze.
  •  The green onions should not be exposed to air for too long in the freezer.
  • Once fully frozen, remove the baking sheet from the freezer.
  • Pack the green onions into small resealable freezer bags straight away. 
  • Press out all the air and seal tightly( The more air around the scallions, the greater chance there is of freezer burn developing and textural damage).
  • Write the date of freezing on the packaging so you know how long the green onions have been stored.

The flash freeze method prevents the green onions from clumping together once packed allowing one to only take out as many as needed at a time for cooking.


In this brief guide, we answered the question “How to preserve green onions?”, and discussed the different methods of preserving green onions and the potential implications of preserving green onions.

If you have any questions or comments please let us know.


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Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.