Mandy Renteria’ Group

Bicarbonate of soda and baking soda are actually the same ingredient—sodium bicarbonate. The difference is just in the name: “bicarbonate of soda” is commonly used in Ireland and the UK, while “baking soda” is the term in the US.

This ingredient acts as a leavening agent in baking. When it combines with acidic ingredients like lemon juice, yogurt, or vinegar, it produces carbon dioxide, which creates bubbles and helps cakes, breads, and muffins rise and become light and fluffy. It’s important not to confuse it with baking powder, which already contains an acid and reacts differently.

For a complete explanation and useful tips, check out is bicarbonate of soda the same as baking soda on The Irish Insider.