Sodium bicarbonate, commonly known as "baking soda", "baking soda powder" and "Cao Chong", is white and fine crystals, and its solubility in water is less than that of sodium carbonate. Solids above 50℃ begin to decompose gradually to produce sodium carbonate, carbon dioxide and water, and completely decompose at 270℃. Sodium bicarbonate is an acid salt formed by neutralization of strong alkali and weak acid, which is weakly alkaline when dissolved in water. This characteristic is often used as a starter in food production. Sodium carbonate will remain after the action of sodium bicarbonate, and excessive use will make the finished product have an alkaline taste.

2) Foaming powder is white powder filled with acidic substances such as baking soda powder and corn flour.

For example, sodium bicarbonate and citric acid react with water to release carbon dioxide and become cakes with fluffy gaps.

3) Soda powder and baking soda are the same