How do you make a homemade cleanser that cleans mold off walls?

Answer 1

The best material to do this is simple household bleach or Sodium hypochlorite.

It kills the mould spores as well as cleans it. Dilute the bleach with water so that it is just strong enough to do the job. Rinse off with clean water after.

Be particularly careful with the bleach around metal parts like window and door frames. Wash it off well as bleach can stain and also promote rust if left in places like window frame heads .
Cheers, Bill

Answer 2

Vinegar

Vinegar is readily available in any home and compared to other products in the market using a vinegar solution to clean mold is the safest and one of the most effective ways to clear mold on just about any surface. It also has no fumes that are harmful to your health. For bathroom molds, mix 3 parts of white distilled vinegar with 3 parts water. Use a sponge with the solution and soak the moldy area and let it set for a few minutes. Wipe down with a dry cloth after.

Chlorine Bleach

Chlorine bleach is also readily available in the home and can be used for mold cleanup. Every brand of bleach has its own mixture solution so follow instructions carefully. This works best for nonporous surfaces like counter tops and tiles. Place solution inside a spray bottle and spray on moldy surfaces. Let it soak for a few minutes and then wipe off until mold in completely gone. Make sure when cleaning the inside of the home that the area is well ventilated. Though bleach is a good mold cleanup solution, it can be very dangerous when inhaled. Also, if you are not sure about a surface's reaction to bleach, first test a small, inconspicuous area or use the all natural vinegar-and-water solution.