If any kind of porous material popcorn wood drywall etc has been used on your ceiling then you will not be able to clean it properly.
How to treat mildew on popcorn ceiling.
Also depending upon how much mold or mildew it is that you have.
The mold will simply come back quickly later.
You will have to remove the affected portion of ceiling and replace it.
If its just a darkening of the ceiling and its really only a sand texture you can clean the surface using a bleach and water solution to remove any loose mold growth let dry then paint using a good quality mold resistant primer.
To prevent mold regrowth coat your ceiling with a stain killing primer then paint over it with a mildew resistant.
If your ceiling is moldy you may have a water leak in it or behind the walls.
Continue to clean your brush off in warm water as you work through the moldy area.
They were a quick cheap way to finish ceilings in tract homes and apartment buildings.
Using a brush scrub at the area of mold which has been sitting in the vinegar.
Zinzer makes several types.
Other than aesthetic purposes mildew removal is necessary to prevent the spores from spreading and further contaminating the bathroom.
Popcorn ceilings were inescapable from the 1950s to the early 1980s.
Scrub the mold away with warm water and a scrub brush.
Using a scrub brush will make it easier to break up the mold as well as keeping your skin further removed from the vinegar while you are cleaning.
Mildew is a fungus that contains a musty odor and appears as multicolored spots on ceilings.
Examine the material used to construct the ceiling.