Baking Soda and Bicarbonate of Soda: Clearing Up the Kitchen Confusion

The Names on the Box

Walk down the baking aisle and you'll spot boxes labeled either “baking soda” or “bicarbonate of soda.” In the United States, folks almost always call it baking soda. Across the UK and Australia, you’re more likely to see bicarbonate of soda or sometimes just bicarb. Peel back the packaging and you’ll find the same white powder—sodium bicarbonate.

What’s Really Inside

Sodium bicarbonate sounds more like something from chemistry lab than a grandma’s pie recipe. Still, soda bread, tender cookies, and fluffy pancakes rely on that exact ingredient. What goes on in the oven fits cleanly into chemistry: baking soda reacts with acid (think buttermilk or lemon juice) and produces carbon dioxide bubbles. Heat helps along the process, filling batters with air and giving bakes their lift.

Some cooks get nervous when recipes mention either baking soda or bicarbonate of soda, unsure if the result will end up inedible if they use whatever box is nearby. Good news—there’s no need to panic. Both are sodium bicarbonate. Swapping between them won’t change the science or the taste, as long as the powder is still fresh.

Baking Soda Beyond the Kitchen

Anyone who’s spent time scrubbing tea stains or deodorizing a fridge drawer has probably used baking soda in another form. Toothpastes often include sodium bicarbonate because it helps remove surface stains. My own grandmother swore by a baking soda paste for little burns and itchy bites, and to this day, a box lives under my sink for cleaning stubborn pans.

Hospitals have used sodium bicarbonate to manage certain cases of acid imbalance in the body. According to health resources including Mayo Clinic and NHS, doctors prescribe it carefully, only when clearly needed. For home purposes, it still offers safe, effective cleaning and a spot in all sorts of baked treats, but drinking too much of it or using it as a cure-all causes more harm than good. The truth is, for regular use, its power shines in the oven and around the house.

Keeping It Fresh

The only drawback I’ve run into comes from storage. Baking soda absorbs moisture, odors, and even bits of acidity from the air. That’s perfect for keeping a fridge fresh, but less ideal for baking. A box left open in the pantry too long won’t work well for cookies, losing its fizz and maybe picking up strange flavors. I keep mine in a tightly sealed jar, marked with the date, switching to a new one every few months.

A Few Tips for Getting the Best Results

If a recipe calls for baking powder instead, that gets a little trickier. Baking powder actually contains both sodium bicarbonate and acid. Subbing plain baking soda changes how much fizz you get, and, depending on your mix, the texture or taste could shift. For pure sodium bicarbonate—call it bicarb, baking soda, or whatever your family prefers—the swap is safe and easy.

Baking soda—bicarbonate of soda—belongs in every kitchen, cleaning kit, and first aid drawer. Knowing both names means one less thing to worry about on busy days or across different countries. As long as the powder is sodium bicarbonate, the result will be golden loaves, clean counters, and fresh-smelling shelves.