2torial #0444: Learn2 Clean a Bathroom (Continued) Battle the mildew Now let's target the mildew itself. This isn't dirt, it's a colony of tiny organisms that flourishes in the humid conditions of your bathroom. A light scrubbing here will work for a while, but the mildew will grow back eventually. It's time for a deep cleaning, and a change in the environment (see Step 6). Bleach doesn't just clean, it kills bacteria and simple organisms (such as mildew and mold). Use a bleach-based cleaner, preferably a scouring powder, for the grout between the tiles. If you really want to banish the blight, use an old toothbrush to scrub the grout. Mildew on your shower curtain? Bleach could weaken it, so instead remove it and soak it in the tub in hot water with fabric softener added. Then rinse and dry. If you've opted to use the spray-on type of mildew remover, save it for last (see Step 5). Step 5