How Long Does Baking Powder Last In The Freezer 

How Long Does Baking Powder Last In The Freezer? Resolved

Last Updated on June 22, 2024 by Lori Walker

Wondering how long baking powder lasts in the freezer? You’re not the only one!

I’ve personally explored how long baking powder lasts in the freezer, including the factors that affect its longevity. Read on for more information.

How Long Can You Keep Baking Powder In The Freezer?

Hand Holding Can of Baking Powder

Unfortunately, keeping baking powder in the freezer is not recommended.

You can keep unopened baking powder [1] at room temperature for an extended period, typically 6 months to 9 months.

Once opened, storing it in an airtight container is crucial to prevent moisture and odors from affecting its quality. 

“The biggest challenge of being a pastry chef is that, unlike other chefs, you can’t throw things together at a farmer’s market. You have to be exact when working with baking powder and formula. If not, things can go wrong.”

– Carla Hall, American Chef

While it remains usable beyond its regular shelf life, it is advisable to use baking powder within the first 6 months to ensure optimal results in your baking endeavors. 

Regularly inspect the powder for any signs of spoilage, and if it appears clumpy or loses its potency, it’s time to replace it with fresh baking powder.

Why You Should Not Freeze Baking Powder

Freezing baking powder is not recommended because it can lead to moisture absorption, degrading its quality.

When exposed to moisture, baking powder can prematurely activate, reducing its effectiveness as a leavening agent.

It is best stored in a cool, dry place and properly sealed to maintain its potency. Always check its expiry date for optimum results in your baking.

Best Ways To Store It

  1. Airtight Container: Use an airtight container to keep baking powder. It prevents the infiltration of air, humidity, or any moisture. These can trigger a premature chemical reaction in the baking powder, making it lose its leavening abilities. You can use the original packaging if it seals tightly or transfer it to another airtight container.
  2. Cool, Dry, Dark Location: The location of storage plays a crucial role. A cool, dry, and dark pantry or kitchen cabinet is ideal. Exposing the baking powder to heat, like near a stove or oven, can hasten the degradation of its leavening properties. Similarly, exposure to light can also accelerate deterioration.
  3. Avoid Introducing Moisture: Moisture is baking powder’s enemy. Always use a dry spoon to measure out baking powder. If a wet spoon is used or any liquid gets into the container, it can lead to clumping and prematurely start the chemical reaction that should happen in your baked goods.
  4. Check Expiration Date Regularly: Baking powder doesn’t last forever. Over time, it loses its potency, even with the best storage practices. It usually has a shelf life of about 9 to 12 months. To ensure it’s still active, you should periodically check the expiration date.
  5. Potency Test: If you’re unsure about its effectiveness, you can conduct a simple potency test. Mix a teaspoon of baking powder with a cup of hot water. If the mixture bubbles up vigorously, it means your baking powder is still potent. If not, it’s time to replace it.

“In the icy embrace of the freezer, baking powder’s leavening magic lingers, defying time. Like a patient companion, it waits to breathe life into your baked creations, a reminder that even in the chill of preservation, its potential remains ever ready to rise.”

– Leonelli Bakery

Check out these steps to make sugar cookies without using baking powder here.

Signs That Baking Powder Should Be Discarded?

Baking Powder
  • Unusual Odor: If the baking powder develops a strange or off-putting odor, it may have gone wrong and should not be used.
  • Clumping: If the baking powder appears clumpy or forms hard lumps, it may have absorbed moisture during freezing, causing it to lose its leavening power.
  • Loss of Potency: Perform the hot water test, as mentioned earlier. If the baking powder shows little to no reaction when added to hot water, it may have lost its potency [2] and should be replaced.
  • Signs of Moisture: Moisture can adversely affect the quality of baking powder. If there are visible signs of moisture or if the container is not tightly sealed, it’s best to discard it.
  • Expired Shelf Life: If the baking powder exceeds its recommended shelf life (6 months to 9 months), replacing it with fresh baking powder is safer.

Related Post: Is It Okay To Use Fridge-N-Freezer Baking Soda For Baking?


Is baking powder the same as baking soda? 

No, baking powder and baking soda are not the same. Baking powder contains both an acid and a base, while baking soda is a single ingredient (sodium bicarbonate).

But what is a good substitute for cornstarch?

How long does baking powder last at room temperature?

When appropriately stored at room temperature in a cool, dry place, unopened baking powder can last for about 6 to 9 months.

However, its leavening power may gradually weaken over time. It’s best to check the expiration date on the packaging and use it before that date for optimal baking results.

Once opened, baking powder should be used within 6 months to ensure it remains effective in your recipes. 

Final Thoughts

Keeping baking powder in the freezer isn’t ideal as moisture exposure can lead to premature activation, reducing its effectiveness.

Store your baking powder in a cool, dry place, ensuring it’s always ready to create those perfect baked goods.

If you found this blog helpful, please share it with your fellow baking enthusiasts and subscribe for more useful tips. Let’s continue to master the art of baking together! Remember, proper storage equals successful baking.


Lori Walker

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