Soap scum will leave behind a white and filmy substance on the surface of shower tiles. The scum often sticks to the tiles, which makes it difficult to remove without the aid of a cleaner. Instead of purchasing a cleaner from the store, you can make your own at home with items that you already have. Soap scum generally consists of soap and hard water deposits. The soap scum will allow mould and mildew to form on the tiles, which can stain the grout. If you cannot prevent the soap scum from forming, then you need to remove it immediately to keep the tiles in top condition.
Combine 1 part of white distilled vinegar with 2 parts baking soda in a bowl to create a paste.
Spread the paste onto the soap scum on the wall tiles with a sponge. Allow it to sit for 10 minutes.
Rinse the paste off the shower walls with clean water. Reapply the solution if soap scum is still present.
Scrub the walls and the grout with a nylon scrub brush. Rinse the solution off with clean water.
Wipe the tiles with a towel to dry them.
Prevent soap scum from forming by wiping the shower down after every use.
If you notice mildew in the shower, clean it with a diluted bleach solution. Combine 1/4 cup of chlorine bleach with 1 gallon of water to kill the mildew.