Koepoe Koepoe Soda Kue is a versatile and essential baking ingredient that serves as a leavening agent to help your baked goods rise and achieve a light and fluffy texture. This soda kue reacts with acidic components in the batter to produce carbon dioxide gas, which creates bubbles and lifts the batter during baking. As a result, it contributes to the soft and airy texture of your cakes, muffins, cookies, and quick breads.