Baking Soda vs. Baking Powder: What's the Difference? (2024)

Whether a beginner or a pastry pro, you probably use baking powder and baking soda frequently. That's because they are some of the most common leavening agents in baking, which create the rise and expansion of batters and doughs. Both white powders are chemical leaveners, meaning they interact with other ingredients to produce carbon dioxide during mixing and baking. That gas expands to provide the lift in your cakes, cookies, and other baked goods.

They may sound and act similarly, but have you ever stopped to think about why a recipe uses one instead of the other or both? Turns out, it's all about the science.

What's the Difference?

You may have already guessed that baking powder and baking soda are not the same or interchangeable. Baking soda is 100 percent sodium bicarbonate, an alkaline salt compound that creates carbon dioxide gas when mixed with an acid. Baking powder, on the other hand, is a mixture of sodium bicarbonate and an acid like cream of tartar which requires moisture and heat to activate.

When to Use Baking Powder

Because baking powder already contains an acid, it is used in recipes where an acid is not a significant ingredient. Most store-bought baking powders will be labeled "double acting," meaning they start to activate once they touch a liquid and again when heat is applied. You will see it solo in vanilla cake recipes, for instance, which use regular milk for moisture and the heat of the oven to activate the baking powder.

When to Use Baking Soda

Since baking soda needs to mix with acid to create carbon dioxide, you will commonly find it in recipes featuring a prominent acidic ingredient such as cocoa powder or buttermilk. Think of the classic childhood volcano project when you mix baking soda with vinegar. That's essentially what's happening inside the batter to create the expansion. Baking soda also promotes browning, making it an excellent choice for recipes that benefit from it, like classic chocolate chip cookies.

Why Do Recipes Include Both?

If you look on the side of the box, baking soda is listed as an antacid. When it produces carbon dioxide, it essentially neutralizes the acidic ingredient. But what if you need acid for flavor? Let's use a more obvious example like buttermilk biscuits. If you only use baking soda, you'll lose that telltale tang. Using a combination of both will both leaven a recipe and keep some of the flavor profile.

Also, in some cases, baking soda alone may not give enough lift. Adding too much of it will create a metallic or bitter taste. That's why it requires a little help from a friend. It's a delicate balance between gas production, flavor, and browning for most baked goods, which is why you often see both used in the same recipe. Even professionals must experiment to get that ratio just right, and it's another reason why most baking requires adherence to exact recipe ingredients and measurements.

Do Either Go Bad? Here's How to Make Sure They're Fresh

Like most kitchen ingredients, baking powder and baking soda eventually lose their potency. Opened containers will last about six months to a year, while unopened containers should last until their expiration dates. If you find yourself in questionable territory and want to reconfirm freshness before ruining a batch of berry shortcakes, try these simple tricks. For baking powder, add ½ teaspoon to a small bowl and pour ¼ cup of boiling water over the top. If fresh, the mixture will bubble vigorously. If it barely bubbles or doesn't bubble at all, toss it.

For baking soda, place a teaspoon of it into a small bowl and add a tablespoon of vinegar or lemon juice. It should bubble and fizz vigorously like a little volcano project if it's fresh. If not, you know what to do. And perhaps this should go without saying, but please don't use the same baking soda actively deodorizing your refrigerator. That's already serving its purpose and doesn't belong in your baked goods.

Baking Soda vs. Baking Powder: What's the Difference? (2024)

FAQs

Baking Soda vs. Baking Powder: What's the Difference? ›

However, if you're in a pinch, the substitution is one teaspoon baking soda equals three teaspoons baking powder. Baking soda is also much stronger than baking powder and, by trying to provide enough leavening, you may wind up with an unpleasant metallic, salty taste in the final baked product.

Can you use baking soda instead of baking powder? ›

However, if you're in a pinch, the substitution is one teaspoon baking soda equals three teaspoons baking powder. Baking soda is also much stronger than baking powder and, by trying to provide enough leavening, you may wind up with an unpleasant metallic, salty taste in the final baked product.

How does baking powder differ from baking soda? ›

Baking soda is pure sodium bicarbonate. Recipes that already have some sort of acid, buttermilk for example, will generally use baking soda. Baking powder is sodium bicarbonate combined with a powdered acid; it is pre-packaged to react in the presence of moisture and heat.

Is baking soda or baking powder better for muffins? ›

Because of baking soda's bitter taste, it must be paired with a sweeter tasting acidic compound. Baking soda is most commonly used in cookie and muffin recipes. Baking powder, however, already contains an acid and a base and has a more neutral taste, which works great when baking cakes and bread.

What do you use baking soda for? ›

Baking soda, also known as sodium bicarbonate or bicarbonate of soda, is a popular baking ingredient. It gives foods like bread, cakes, muffins, and cookies a light, fluffy texture.

What if I accidentally put baking soda instead of baking powder? ›

If you accidentally add baking soda instead of baking powder to baked goods, they won't rise because there is not enough acid. To fix this, add about one tablespoon of white or apple cider vinegar for every half teaspoon of baking soda to the liquids before mixing with the dry ingredients.

What happens if you bake without baking soda or powder? ›

Simply, without these leaveners, many cookies would fall flat and cake layers would be dense and stodgy. But baking powder and soda are not interchangeable, and if you're out of one, the other won't act as a direct substitute (though it can be part of the solution—more on that below).

What is the purpose of baking powder? ›

Baking powder is used to increase the volume and lighten the texture of baked goods. It works by releasing carbon dioxide gas into a batter or dough through an acid–base reaction, causing bubbles in the wet mixture to expand and thus leavening the mixture.

What does baking powder do to cookies? ›

What Is Baking Powder? Baking powder is a two-in-one chemical leavening that combines a powdered alkali (sodium bicarbonate) with a powdered acid (originally, tartaric acid). When moistened in a dough or batter, a chemical reaction takes place that produces carbon dioxide gas, inflating cookies, cakes, and pancakes.

Can I use baking powder to whiten my teeth? ›

Baking soda can be used with some water to remove the stains on the surface of the teeth. It can also be used with hydrogen peroxide to enhance its whitening effects. Baking soda can be used by individuals with regular toothpastes too. It is also used commercially in some teeth whitening products and toothpastes.

Does baking soda go bad? ›

The Food Marketing Institute's "The Food Keeper" recommends storing unopened baking soda at room temperature for 18 months. After opening, store at room temperature for 6 months for best quality.

Does baking powder go bad? ›

"The Food Keeper App" recommends storing unopened baking powder at room temperature for 6 months. After opening, store at room temperature for 3 months for best quality.

Which is better for cleaning baking soda or baking powder? ›

Baking powder is not as effective as baking soda for removing stains. The reason is that baking powder contains both an acid and a base, neutralising its reactivity – the property that gives baking soda its cleaning power. That said, baking powder can still be used for light cleaning tasks or minor stains.

When not to use baking soda? ›

Baking soda's abrasive properties can cause damage over time to marble and quartz. Because baking soda can cause scratches and wear away the top protective layer of marble and quartz surfaces, skip it as an everyday cleaner and instead reach for a cream or liquid cleanser to avoid costly, permanent damage.

What are the three uses of baking soda? ›

Uses: It is used as.
  • In preparation of baking powder.
  • In making cold drinks.
  • As a laboratory reagent.
  • In manufacture of fire extinguishers.
  • As an antacid to decrease the acidity of stomach. Due to its basic alkaline nature it neutralizes the extra acid present in the stomach. Was this answer helpful?

Can you substitute baking powder for baking soda? ›

Baking powder is made of baking soda plus cream of tartar and cornstarch. Baking powder can be substituted for baking soda by tripling the amount of baking powder. Baking soda can be substituted for baking powder by dividing the amount of baking powder needed by 4 and adding twice that amount of cream of tartar.

What will happen if we use baking soda instead of baking powder in cake? ›

Answers: The cake will be bitter as heating baking soda forms sodium carbonate which results in this bitter taste. By the addition of an edible weak acid such as tartaric acid will convert baking soda into baking powder. The role of tartaric acid is to make the cake fluffy.

How much baking soda is equal to 1 tablespoon of baking powder? ›

Baking Powder to Baking Soda Conversion

Use 1 teaspoon of baking soda for every tablespoon of baking powder. To make sure it functions correctly, also add 2 teaspoons of vinegar, lemon juice, cream of tartar, or another acidic ingredient to your batter or dough.

Can I use baking soda in pizza dough? ›

Mix very well. This combination of baking soda and baking powder is what creates the perfect pizza dough rise with no yeast. So ensure that they are fresh, active and within their shelf period.

What happens if you don't add baking soda to cake? ›

Leaving baking soda out of the cake prevents it from rising, but you can use baking powder as a substitute. Baking soda is a salt that makes food light and fluffy. If you don't have this ingredient at hand, use a baking soda substitute. Without it, your cake won't rise and can turn out flat.

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