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3 Reasons Why Your Banana Bread Tastes Like Baking Soda

3 Reasons Why Your Banana Bread Tastes Like Baking Soda

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Banana bread is one of the healthiest and most delicious baked goods. The best part is that you don’t have to knead it or even wait for it to rise. The baking soda does all the work for you!

The main downside is that your banana bread loaf might taste like baking soda. This might be due to the amount of leavening agent added or the baking process itself.

In today’s article, we’ll explain why your banana bread tastes like baking soda and how to fix this issue. Let’s dive in!

Why Banana Bread Tastes Like Baking Soda

So, you’ve successfully made an airy loaf of banana bread, only to find that it tastes bitter. Yet, when you omit the baking soda, you’re left with a gummy, dense loaf.

Thankfully, you don’t need to either leave out the baking soda or tolerate its taste. All you have to do is find out the cause of the sharp taste.

Here are the most common baking mishaps that might result in your banana bread tasting like baking soda:

1 – Too Much Baking Soda

The first reason behind the baking soda taste in your baked goods is that you used too much!

Baking soda is the star of the show when it comes to banana bread. The leavening agent is what makes banana bread so easy to make.

Unlike other pastries, banana bread doesn’t require kneading. There’s also no yeast or waiting involved.

Naturally, the fluffier the bread, the tastier it’ll be. Yet, you have to understand that baking soda is quite pungent.

You can usually get away with adding more leavening agents, such as baking powder or instant yeast. However, baking soda’s flavor will be prominent even by adding an extra pinch.

How to Fix This

Stick to the recipe! Typically, you’ll need about ½ a teaspoon of baking soda per three large bananas.

If you find that your banana bread loaf won’t rise, then you can try incorporating more air into the recipe.

To get the perfect airy texture without adding more baking soda, try the following tips:

  • Sift the flour.
  • Beat the egg whites separately until stiff peaks form, then gently add them to the mixture.
  • Make sure the oven is properly pre-heated.
  • Fill a baking tray with water and add it to the oven as the bread is baking.

2 – Quality of Leavening Agent

It’s usually safe to use baking soda past its expiration date. That said, you should expect the quality of the leavening agent to decrease over time.

Expired baking soda reacts poorly, leading to sunken banana bread. This might prompt you to increase the amount of baking soda.

Even if you don’t add an extra amount, the leavening agent just won’t activate. Instead, it’ll remain in the batter, leaving its bitter taste behind.

Additionally, expired baking soda might have a distinct, soapy taste that’ll surely ruin any recipe.

How to Fix This

You don’t need to buy fresh baking soda each time you make banana bread! Just check the expiration date of the product.

The rule of thumb is that the unopened package is good to use within 2 years, while opened baking soda should be used within 6 months.

If you’re still unsure, you can check the color and consistency of the leavening agent.

The best way to test if your baking soda is good is with an acid. Squeeze some lemon juice into a tablespoon of the agent. If it fizzes, you can use it!

3 – Baking Soda Isn’t Activated

You might use the highest-quality baking soda out there but still end up with baking soda pieces in your banana bread. That’s because numerous baking mistakes might result in unreacted baking soda.

For the baking soda to activate, it needs to be properly mixed and heated. Then, the leavening agent will produce carbon dioxide bubbles that’ll make the bread fluffy!

If you rush the baking process, the leavening agent won’t dissolve or release air bubbles. So, not only will you get a dense banana bread loaf, but it’ll also taste bitter.

How to Fix This

This leavening agent is pretty delicate. You have to be quick with the baking process. That’s because if you leave the batter after mixing, the baking soda will turn sour.

Also, always remember to preheat the oven. Otherwise, the leavening agent won’t fully activate.

Baking soda is alkaline. So, you need an acid to activate it and to offset its intense flavor. Most banana bread recipes disregard the acidic ingredients, as bananas have a bit of acid in them. Yet, this might not be enough to balance the leavening agent.

For this reason, we recommend adding some acidity to the batter. This can be anything from a splash of buttermilk to a teaspoon of molasses.

How to Bake the Perfect Banana Bread

Now you know all the different reasons behind the baking soda taste in your banana bread and how to avoid them.

If you’re still unsure, here’s a recipe for the most delicious, fluffy banana bread:


  • 2 – 3 medium bananas, mashed
  • 1 ½ cups flour
  • ½ – 1 cup sugar, depending on your preferences
  • 1 large egg
  • ⅓ cup melted butter
  • ½ teaspoon baking soda
  • 1 teaspoon vanilla
  • ½ teaspoon molasses
  • 1 tablespoon buttermilk


  1. Before starting with the recipe, preheat the oven to 350℉.
  2. First, mix all the wet ingredients (mashed bananas, butter, vanilla, molasses, buttermilk, and egg yolk) in a large bowl, leaving out the egg white.
  3. In a separate bowl, beat the egg white until stiff peaks form.
  4. Then, gently fold the egg whites into the mixture, but avoid over mixing.
  5. In a third bowl, thoroughly sift the flour, baking soda, and sugar, ensuring there are no clumps in the dry ingredients.
  6. Lastly, add the flour mixture to the wet batter and mix slowly.
  7. Line your tray with parchment paper and add the batter.
  8. Bake the banana bread for about an hour or until the top is golden.
  9. Let the banana bread loaf cool completely before serving and enjoying!

How Much Baking Soda Do You Put in Banana Bread?

Generally, you need to add half a teaspoon of baking soda per every 2-3 large bananas.

The more bananas you add, or the larger the batch you’re trying to make in general, the more baking soda you’ll need to add.

Don’t forget to add a splash of buttermilk or a teaspoon of molasses in the mix. The acidity of either of these two ingredients will ensure that the baking soda is activated.

Final Thoughts

If you’re wondering why your banana bread tastes like baking soda, you might’ve added too much of the leavening agent or used an expired product.

Alternatively, the baking soda might not have activated. This might happen if you leave the batter too long before baking or forget to preheat the oven.

In addition, baking soda needs some acidity to activate. While bananas are acidic, you might need to add another ingredient, such as buttermilk or molasses.

Lastly, if you want to end up with the fluffiest banana bread without tasting like baking soda, sift the dry ingredients and incorporate air into the batter while mixing. Then, you’ll end up with the most delicious and healthy loaf of bread!

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