Vinegar has a mild acidic nature that makes it a perfect natural cleaner to break up dirt, soap scum, mineral deposits and many substances that cause stains. Vinegar also kills mold and other microorganisms. For these reasons, vinegar makes the perfect cleaning agent for showers – especially when combined with slightly abrasive cleaning supplies, such as naturally abrasive baking soda and salt, and shower cleaning tools, such as scrubbing pads and brushes.
Turn on the shower so that hot water runs out. Let it run for five minutes and then turn it off.
Fill a bucket and a spray bottle with undiluted white vinegar.
Unscrew the showerhead. Place it in the bucket and set the bucket aside. If you have a plastic shower curtain, remove it from the shower curtain rod and place it in the bucket before setting it aside.
Pour 1/2 cup baking soda down the shower drain. Pour 1/2 cup vinegar down the drain to clean out the drain.
Spray vinegar on all shower surfaces and wait 20 minutes. If your shower has a door, spray the interior and rails.
Wipe down the shower surfaces with a damp sponge. Scrub the shower surfaces thoroughly with a wet, nonabrasive scrubbing pad. If necessary, sprinkle baking soda or salt directly on the shower surfaces or the pad as you scrub to help dislodge soap scum and stains.
Remove the showerhead from the bucket. Scrub it gently with a soft-bristled brush to remove mineral deposit buildup and then rinse it thoroughly with hot water. When finished, dry the threaded connector and reattach it to the shower pipe.
Pull the shower curtain, if applicable, from the bucket and rinse the vinegar from it. If you have a shower/tub combination, rinse it in the tub. If you don't, rinse it in a large bucket or take it outside and rinse it with a hose. If your shower, doesn't have a curtain, skip this step.
Turn on the shower's hot water and rinse the baking soda or salt and any other residues from shower surfaces, wiping the surfaces down with a fresh sponge. If you have a shower door, squeegee the door and then spray a sponge with vinegar, wipe the exterior of the door and rinse with a wet sponge.
Dry the shower with towels to remove excess moisture. Leave the exhaust fan on or the windows open at least 15 minutes to air your bathroom and reduce humidity.