Club Soda
Club soda is a carbonated beverage that is made up of water, carbon dioxide, and minerals like sodium bicarbonate and potassium sulfate. Due to its leavening properties, club soda is frequently used in recipes to give baked products volume without the use of baking powder or baking soda.
However, because club soda only contains a little amount of sodium bicarbonate, it is best used in recipes that require only a bit of added volume. Using a little club soda will actually give your baked goods a little lift. For instance, club soda is frequently added to make fluffy and moist pancakes. Any liquid in your recipe should be replaced with club soda for best results. This may be used to replace milk or water and add additional lightness and volume.