Does Powdered Sugar Go Bad?

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We are typically familiar with having powdered sugar in our cupboards and knowing how to use it.

But did you know that there’s a lot more to powdered sugar than just a sweet treat?

Does powdered sugar go bad?

The short answer is no, powdered sugar does not go bad.

But, there are some tips to help make sure that your powdered sugar lasts as long as possible.

In this article we will discuss whether or not powdered sugar goes bad, and what you need to do about it if it does.

Does Powdered Sugar Go Bad? 1

How long does powdered sugar last?

There are two main types of powdered sugar: confectioners’ sugar and icing sugar.

Confectioners’ sugar is made from finely ground granulated sugar while icing sugar is made from larger granules of sugar.

If you want to make a cake or other baked goods with your powdered sugar, then you will need to choose the right type of sugar.

Icing sugar is used for frosting desserts like cakes, pies, cookies, and brownies.

Confectioners’ sugar is used for making candies, pastries, and other sweets.

Confectioners’ sugar has a longer shelf life than icing sugar because it is made from fine sugar crystals.

It doesn’t contain any additives (like cornstarch) and is therefore less likely to absorb moisture.

This means that it won’t clump up as easily when stored in a container.

Because of this, you should be able to keep it in a jar for about six months if you don’t open it often.

Icing sugar, on the other hand, contains additives, including starch, which makes it much easier to clump up.

As such, it will only last around three to four weeks once opened.

If you plan to use it within a few days, it’s best to buy a new batch immediately after opening it so that you can use it before it starts to clump up.

Both types of powdered sugar are also available in different colors depending on what type of flavor you prefer.

Some brands even offer flavored versions of both types of sugar.

The most common flavors are vanilla, chocolate, and strawberry.

Powdered Sugar

What are the signs that powdered sugar has gone bad?

First of all, do not confuse powdered sugar with confectioners’ sugar—a different kind of product altogether.

Powdered sugar is made from granulated white sugar, while confectioners’ sugar is made from granulated sugar mixed with cornstarch.

There are some similarities between the two products, but there are also some key differences.

For example, confectioners’ sugar contains no additives or preservatives, whereas powdered sugar may contain artificial sweeteners such as aspartame or sucralose.

It’s also important to note that powdered sugar is very porous, which means that it absorbs moisture easily.

This makes it prone to mold growth over time.

The other major difference between the two is their texture.

Confectioners’ sugar is very fine, fluffy, and powdery in appearance, while powdered sugar is much coarser.

If you’re using either of these products to make a cake, it will be easier to mix if the powdered sugar is a bit finer.

But what about when it comes to storing the product?

When should you throw out powdered sugar?

And what should you do with it if you don’t want to throw it away?

We’ll answer both of those questions below.

How can you tell if powdered sugar is fresh?

It’s easy! All you need to do is follow these simple steps.

  • Open your container of powdered sugar (or bag) and look at the expiration date. If it’s expired, don’t use it.
  • If it’s still good, shake it well before using it. This will help make sure that all of the powder has been mixed together.
  • Use it immediately after mixing it with other ingredients.
  • Store it in a cool, dry place. Don’t leave it out where it could get wet or exposed to heat.

But what happens if you don’t want to use powdered sugar right away?

Is there any way to extend its shelf life beyond the point of expiration?

How should you store powdered sugar?

If you’ve ever tried to make something with powdered sugar, chances are it didn’t turn out as well as you hoped.

This is because most recipes call for specific amounts of powdered sugar, which means if you don’t measure your sugar correctly, you won’t get the right results.

So what exactly do you need to store powdered sugar properly?

And how long will it last before it goes bad?

What happens if you eat expired powdered sugar?

You may be asking yourself what happens when you buy your powdered sugar at the grocery store and then discover that it has gone bad.

A little research will tell you that this isn’t something you want to find out about too late.

The most common way that powdered sugar goes bad is through contact with moisture.

This is why powdered sugar should never be kept in a humid environment or near any foods that contain moisture like yogurt or milk.

If you keep your powdered sugar in a container that is exposed to the air, it will eventually start to absorb air and become stale.

When this happens, the sugar begins to lose its sweetness and becomes unusable.

It also becomes very sticky and hard to dissolve into liquids.

If you open up your jar of powdered sugar and notice that it smells musty or moldy, it’s best to throw it away immediately.

The only exception to this rule is if you open up the jar and see that some of the sugar has been eaten by ants.

Then, it’s ok to let it sit in the jar for a few days before throwing it away.

Otherwise, you should toss it right away because it could potentially cause food poisoning.

This is why it’s important to keep your powdered sugar tightly sealed in its original packaging.

Make sure that the lid is always tight and that you don’t leave any openings in the jar where moisture can get inside.

If you do accidentally spill some powdered sugar, make sure that you clean up the spilled sugar immediately so as to prevent it from attracting insects.

When buying powdered sugar, look for a brand that says “moisture-proof” or “non-perishable” on the label.

These are the types of brands that are designed to last longer.

Is it safe to use expired powdered sugar?

Powdered sugar has a long shelf life, which means that it could be used after its expiration date.

However, there are some potential hazards that come with using expired powdered sugar.

For example, if you’re baking something like a cake or cupcakes, the powdered sugar may begin to harden during storage, making it difficult to incorporate into your recipe.

This is especially true when using a large quantity of powdered sugar, as the mixture will become too thick and heavy to work with.

Another issue with using expired powdered sugar is that it may have been exposed to moisture that has made it sticky.

When baked goods are exposed to moisture, they tend to stick together, making them impossible to separate.

In addition, the sugar may also turn brown and lose its sweetness.

If this happens, simply add another tablespoon of sugar to compensate for the lost flavor.

Lastly, using old powdered sugar can cause bacteria growth.

Bacteria is a natural part of our environment, but when stored improperly, it can multiply quickly.

Bacteria can even grow inside food products, potentially leading to illness or spoilage.

The best way to prevent this from happening is by storing powdered sugar properly.

How can you extend the shelf life of powdered sugar?

We all know that powdered sugar is an important part of our kitchen pantry.

It’s used to make cakes, cookies, and other baked goods.

However, did you know that it has many other uses?

It’s actually a very versatile ingredient.

Powdered sugar comes in different forms: granulated, confectioners, and icing.

Granulated sugar, or table sugar, is made from either sugarcane or beets.

The process of refining the sugar removes impurities and produces a white powdery substance.

This is then put into a large container where it is mixed with water until the sugar dissolves.

Sugar is hygroscopic, meaning that it absorbs moisture from the atmosphere.

This makes it hard to keep in airtight containers.

To prevent this, store your sugar in a tightly sealed jar.

When using granulated sugar, remember to always add extra ingredients like milk or cream when baking.

These will help to bind the ingredients together.

If you don’t do this, your baked goods may come out flat, dense, and crumbly.

Confectioners’ sugar is similar to granulated sugar, but it has been processed differently.

It is a finely ground sugar that is often used as a dusting for desserts.

This type of sugar is also known as powdered sugar because it is so fine.

Icing sugar is a finer form of confectioners’ sugar.

It contains cornstarch, which prevents clumping in the air.

Icing sugar is usually added to recipes after they are cooked to create a smooth texture.

Do not confuse icing sugar with cake flour!

Cake flour is made from ground-up wheat and is a key ingredient in most cakes.

Coffee creamer is another powdered sugar alternative.

It is made by grinding up coffee grounds, adding sugar, and steeping them in hot water.

Coffee creamer is often used to thicken sauces and soups.

This is a great alternative to regular powdered sugar if you want a sweeter taste without the calories.

Now that you know what powdered sugar is, let’s look at some ways you can store it longer.

What are some tips for using powdered sugar?

If you’ve ever tried to make a cake or cupcakes with regular granulated sugar, you know that they don’t always turn out as expected.

There are many different types of sugars available, but none of them are ideal when it comes to baking.

It turns out that powdered sugar has its own set of problems, too.

It doesn’t dissolve very well, which means that if your batter isn’t mixed properly, you might end up with a lumpy mess instead of a smooth frosting.

And then there’s the fact that powdered sugar tends to clump together over time, so you may have to separate it from other ingredients before you add it to your batter.

But don’t worry!

With these handy tips, you’ll be able to whip up delicious treats without having to deal with any of these issues.

How do you make homemade powdered sugar?

To make powdered sugar from scratch, you will need two ingredients:

cornstarch and granulated white sugar.

The ratio is 1 part cornstarch to 3 parts sugar.

A quick internet search reveals many recipes for making your own powdered sugar.

Some of them call for using only cornstarch and some require adding other ingredients like salt or vanilla extract.

It turns out that the recipe doesn’t matter as much as the process.

Here’s what you need to do:

Combine equal amounts of cornstarch and sugar with a whisk or wire whisk until smooth.

Add water slowly while stirring constantly until mixture comes together into a thick paste.

Sift through a fine mesh strainer and transfer to a bowl.
Store in an airtight container.

How to Make Powdered Sugar

How to Make Powdered Sugar

This homemade powdered sugar recipe is SO easy – you'll never get the store bought kind again! Use it in any recipe that calls for powdered sugar, icing sugar, or confectioner's sugar.
Prep Time 5 minutes
Cook Time 5 minutes
Total Time 10 minutes
Course Dessert
Cuisine American
Servings 2
Calories 800 kcal


  • 1 blender


  • 2 cups granulated sugar
  • 2 tablespoons corn starch


  • Blend the cornstarch and sugar at high speed for 30 seconds, or until fluffy.
  • Use an airtight container for storage. Sift the powdered sugar before using if it becomes lumpy.



Yield: about 4 cups powdered sugar


Calories: 800kcalCarbohydrates: 207gProtein: 0.02gFat: 1gSodium: 3mgPotassium: 4mgFiber: 0.1gSugar: 200gCalcium: 2mgIron: 0.1mg
Keyword Make Powdered Sugar
Tried this recipe?Let us know how it was!

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