1. whitening teeth baking soda can effectively remove stains on the teeth as well as improve the problem of yellowing teeth. When brushing your teeth, pour baking soda directly on the toothbrush and brush your teeth, so stick to it for a week or so, you can clearly see signs of whitening teeth. This is because the baking soda is granular, and it itself is rich in foam, so it can effectively remove the dirt on the teeth, so as to achieve the effect of teeth whitening.2. Exfoliation of water will be baking soda into a paste, and then dipped into the hands of the skin in the face of the massage, can achieve the role of exfoliation. This is because baking soda can clean off the skin surface of the dead cells, for these attached to the skin surface of the dead cells, it is a natural stripper. 3. clean clothes with baking soda and laundry detergent mix, add warm water soak clothes, can effectively remove the dirt on the clothes. Because baking soda is an alkaline substance, it has a strong cleaning ability, so it can remove the acidic stains on the clothes. And can effectively clean up the odor of the clothes.4. Remove oil stains for the kitchen hood on the oil stains, baking soda sprinkled on the top, and then wipe with hot water, will be able to easily wipe away the oil stains. This is also because the kitchen oil stains are acidic, baking soda and its growth of acid-base neutralization reaction, so as to achieve the role of cleaning. Baking soda has many wonderful uses in daily life, master these tricks can bring many benefits to life. I hope you can through this article on the role of baking soda have a closer understanding.