How to Use Baking Soda in Laundry - The Spruce
The Spruce / Autumn Wood. Baking soda is a natural gentle abrasive. To remove built-up starch and scorch deposits from the faceplate of a cool iron, mix a paste of baking soda and water. Using a white cloth, rub the paste over the face of the iron. For tough build-up, use the cloth to scrub gently and repeat until the build-up is gone.