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How Long Does Baking Powder Last? Does it Go Bad?

Baking powder is an ingredient that is not used too frequently that’s why people always find its open packs lying in the pantry.

After finding these packs, people get curious that they should use them right away or if do baking powder go bad.

Even though these packs look fine after years of storage, they might not offer you a similar quality as before.

So yes, baking powder does go bad after a certain period.

Thus you must check its freshness before using it in your recipes.

How Long Does Baking Powder Last? Does Baking Powder Go Bad?

When figuring out how long you can use it, one must consider its best-by date.

The usual shelf life of an unopened baking powder pack is 18 to 24 months before it reaches its best-by date.

However, this can be used even after that date, but if you want to experience its authentic flavor, you should use it within the labeled date.

If the baking powder is closed, one can use it beyond its labeled date for six months.

When the box is opened, they need to use it within a short span as its quality begins to degrade as soon as you open it.

For an opened pack, the shelf life is six months before the best-by date.

In case, you have an opened pack, then be sure to avoid its consumption if it has crossed its best-by date.

Your baking powder can serve for the periods mentioned earlier or can even be bad before that.

The shelf life mostly depends upon the storage conditions in which you keep the powder.

If the storage conditions are favorable, one can retain the quality of the powder for an extended period.

On the other hand, unfavorable storage conditions can make it go bad in a short period.

How to tell if Baking Powder Has Gone Bad?

  • Take a test.

Once you find old baking powder, you can take a little test to see if it’s still effective.

One needs to take some water, powder and a bowl.

Then pour some water into the bowl and add baking powder to it.

If the powder is still fresh, then a bubbly reaction will appear, but if the powder does not react after mixing with water, it’s undoubtedly gone bad, and you should throw it out.

  • Mold growth.

Although it is rare, one should look for mold growth in old stored baking powder.

Baking powder does not get mold that easily, but if the storage is inappropriate, you can see mold growth.

You need to look for grey spots or any growth emerging from the powder.

This is caused when the powder is exposed to moisture, so if you see them, then avoid its consumption.

  • Follow the expiry date.

All the packs of baking powder come with a labeled and printed date that explains when the powder will retain its quality.

You can count on its printed date if you are unaware of its shelf life.

You should only use the powder after its labeled date if it’s completely sealed or the pack is closed.

How to Store Baking Powder?

  • Stay away from pungent scents.

While choosing a safe spot for storage, it’s necessary to check the surrounding items too.

Most of the time, people find the dry storage place, and the powder keeps intact.

However, it does develop a change in its smell.

This happens if the powder is stored near food items that have a strong smell, so it absorbs its odor and loses its authentic scent.

  • Store at a dry place .

There is no doubt that powders absorb moisture more quickly than other products.

Thus, be sure to store it in a place away from water and any other liquid.

A dry spot that is away from heat and sunlight is perfect for storing baking powder to retain its quality for a prolonged period.

  • Reseal the box.

You should seal the box completely when you want to prevent your content from getting moist and exposed to air.

So it would be best to store it in a container or box that can be resealed easily.

If the original package does not offer complete protection, you can transfer it to a glass or airtight container.

how long does baking powder last does baking powder go bad

How Long Does Baking Powder Last? Does it Go Bad?

Concerned about the shelf life of your baking powder? Find out how long baking powder lasts and whether it loses its potency over time with this comprehensive guide.
5 from 1 vote
Prep Time 15 minutes
Cook Time 15 minutes
Total Time 30 minutes
Course Shelf Life
Servings 1 Serving


  • Baking powder
  • Air-tight containers or Ziplock bags
  • Labels and markers


  • Store your product in an labelled container in a cool, dark place like the pantry or fridge.
  • If your food is frozen, allow it to thaw in the fridge before cooking.
  • Make sure to look for signs that your food has gone bad before eating it.
Keyword How Long Does Baking Powder Last
Did you make this recipe?Mention @AmericasRestaurant or tag #americasrestaurant!
5 from 1 vote (1 rating without comment)

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