How To Freeze Onions And Celery

You can freeze onions and celery easily, and doing so is one of the best ways to stop them from going bad before you get a chance to use them.
 
Whether you have a half-used onion sitting on the counter or a whole bunch of celery that’s starting to wilt in the fridge, freezing is a simple, budget-friendly solution.
 
In this post, we’ll walk through exactly how to freeze onions and celery, the best methods for each, and a few tips so they keep their flavor and texture once thawed.
 
Let’s get into it.
 

How to Freeze Onions and Celery: The Basics

Learning how to freeze onions and celery properly comes down to a few simple steps that apply to both veggies.
 
The goal is to prep them, pack them, and store them in a way that locks in freshness.
 
Here’s what you need to know before you start.
 

1. Prep and Chop First

Before you freeze onions and celery, give them a quick wash and chop them into the size you’ll actually use.
 
Dice onions into small pieces and slice celery into thin crescents.
 
Chopping beforehand means you can toss them straight into a hot pan later without any extra work.
 

2. Blanch Celery for Best Results

If you want to freeze celery and keep its color and flavor, a quick blanch is worth the effort.
 
Drop the chopped celery into boiling water for about two minutes, then move it straight into an ice bath.
 
Onions don’t need blanching at all, so you can skip this step for them.
 

3. Dry Them Thoroughly

Excess water is the enemy when you freeze onions and celery.
 
Spread the pieces on a clean towel or paper towel and pat them dry.
 
This step prevents ice crystals from forming and keeps your frozen veggies from clumping into one solid block.
 

How to Freeze Onions and Celery Step by Step

Now that the prep is done, here’s how to freeze onions and celery so they stay fresh for months.
 
Follow these steps and you’ll have ready-to-use veggies anytime.
 

1. Flash Freeze on a Baking Sheet

Spread the chopped onions and celery in a single layer on a baking sheet lined with parchment paper.
 
Pop the sheet into the freezer for about an hour, or until the pieces are firm.
 
Flash freezing keeps the pieces separate so you can scoop out just what you need.
 

2. Transfer to Freezer Bags

Once frozen, transfer the onions and celery into freezer-safe bags or airtight containers.
 
Squeeze out as much air as possible before sealing to prevent freezer burn.
 
Label the bags with the date so you know how long they’ve been stored.
 

3. Store and Use Within Three to Six Months

Your frozen onions and celery will stay at their best for about three to six months.
 
After that, they’re still safe to eat but may lose some flavor and texture.
 
Keep them in the coldest part of your freezer and avoid repeated thawing and refreezing.
 

Tips for Using Frozen Onions and Celery

Knowing how to freeze onions and celery is only half the battle, so here’s how to put them to good use.
 
Frozen veggies behave a little differently than fresh ones, so a few adjustments go a long way.
 

1. Skip the Thawing Step

You can toss frozen onions and celery straight into soups, stews, and casseroles.
 
There’s no need to thaw them first, which saves you time on busy weeknights.
 
Just add them a minute or two earlier than you would fresh ones.
 

2. Use Them in Cooked Dishes

Frozen celery and onions lose their crisp crunch once thawed, so they’re best in cooked recipes.
 
Think sauces, stir-fries, meatloaf, and stuffing.
 
For salads or fresh salsas, you’ll still want to use the fresh stuff.
 

3. Keep Portions Handy

Freeze onions and celery in small portions so you can grab exactly what a recipe calls for.
 
A cup per bag is a handy size for most soups and stews.
 
This little habit cuts down on waste and makes meal prep a breeze.
 

So, Can You Freeze Onions and Celery?

You can freeze onions and celery, and it’s one of the easiest ways to cut down on food waste.
 
Chop them, blanch the celery, dry everything well, and flash freeze before bagging.
 
Frozen onions and celery keep for months and go straight from the freezer into your favorite cooked dishes.
 
Give it a try the next time you have extra veggies on hand, and you’ll wonder why you didn’t start sooner.