If you have ever been confused by the names baking soda and bicarbonate of soda, there is a simple answer. Whether you are following a recipe from a British cookbook or an American baking blog, or simply looking for ways to clean your home, you have probably come across both terms. The two ingredients often appear in similar recipes, look identical on supermarket shelves, and seem to perform the same role in baking. But are they actually the same thing, or are there important differences? Before you start swapping one for the other, it is worth understanding exactly what these common kitchen ingredients are, how they work, and how they compare with another familiar raising agent.
The Simple Answer
If you have ever followed an American recipe and wondered whether you need baking soda or bicarbonate of soda, or wondered which one to use around the house to clean, you may have been left confused. But the simple answer is that they are exactly the same thing. The difference is purely one of language. In the United States, the ingredient is known as baking soda, while in the UK and many other countries, it is known as bicarbonate of soda. Both names refer to the same chemical compound that helps baked goods rise and clean household items.
What Is Bicarbonate of Soda?
Bicarbonate of soda, or baking soda, is a white crystalline powder that acts as a raising agent. When it comes into contact with an acidic ingredient and moisture, it produces carbon dioxide gas. These tiny bubbles become trapped in the batter or dough, helping baked goods rise and develop a light texture.
How to Use Baking Soda
Bicarbonate of soda can also be used on its own to clean, helping to lift dirt, neutralise unpleasant odours, and absorb moisture from areas like the fridge. If you mix it with white vinegar, a chemical reaction occurs, and you will notice it fizzing and rising. The bubbling action can help to loosen dirt, grime, and debris from drains, tiles, sinks, and other surfaces. This is why the combination is often used as a natural cleaning solution.
Baking Powder vs Bicarbonate of Soda
Although baking soda and bicarbonate of soda are the same thing, baking powder is something entirely different. Baking powder is a complete raising agent which contains both the alkaline and acidic components needed for a reaction. For example, a recipe for lemon cake may use bicarbonate of soda because the lemon juice provides the necessary acid, whereas a plain sponge cake may require baking powder to create lift. It is important to remember that when it comes to cleaning and baking, these ingredients are not interchangeable.
