How to remove set in stains. Hydrogen peroxide, dawn, and baking soda. You do 2 parts peroxide and 1 part Dawn and baking soda. I mixed up a lot so I did 1 cup of peroxide and cup of the Dawn and soda.
Miracle Worker Stain Remover:Mix together 1 t Dawn (stick with the traditional blue Dawn), 4 T Hydrogen Peroxide, and 2 T Baking Soda. Mix it together. This stain remover works miracles on old baby poo and spit up stains