Does Vinegar Kill Mold?

Vinegar has long been the go-to when it comes to cleaning a small patch of mold like toilet mold, shower mold, and the like. It has been used as a cleaner for centuries and certainly has earned its place as an effective cleaning and disinfecting agent. But does vinegar kill mold? Let’s find out!

What Is Vinegar?

Vinegar is mainly an aqueous solution of acetic acid. It is produced through a fermentation process. It can take from a few months to a whole year. There are many types of vinegars, including fruits, grains, alcoholic beverages, and other fermentable materials.

The types of vinegar are:

White
Wine
Rice
Apple Cider
Red
Malt
Balsamic
Black
Cane

When it comes to mold and vinegar, white vinegar is the common and most effective choice. Although other vinegar, such as apple cider or wine vinegar might have an acetic acid component, their sugar content promotes mold growth which you obviously don’t want.

Does Vinegar Kill Mold?

Vinegar will easily penetrate any porous surface and has the potential to remove the underlying membrane as well as the mold growth on the surface. This means it works well on both porous and non-porous surfaces. Studies have shown that white vinegar kills 82% of mold species. This is because it is mildly acidic (pH of 2.5) in nature.

How Do You Use Vinegar To Kill Mold?

Fill a glass spray bottle with UNDILUTED distilled white vinegar. Distilled white vinegar contains only 5-20% of acetic acid. If you dilute the vinegar in water, the acetic acid concentration will be decreased and becomes less effective.
Spray generously until the mold is 100% covered and wet.
After spraying, let the vinegar sit for 2 hours so it can penetrate the mold and kill it completely.
After two hours, grab a scrub brush, tooth brush, or sponge and scrub the moldy area until everything comes off. If it is tough area, you may need an electric scrub brush like this one.
Wipe the area down with warm water (do not saturate the area) and allow it to dry.

Pros of Using Vinegar To Kill Mold

Earth friendly
Non-toxic and safe to use around people and pets
Works on porous and non-porous surfaces
Easy to source and very cheap
Does kill 82% of mold species

Cons of Using Vinegar To Kill Mold

Leaves a strong odor that lingers for a while
Can leave 18% or more of mold species alive and well
It does NOT remove or kill mycotoxins. This is a major con. Be sure to read my post about mycotoxins so you have a better understanding of why you need those bad babies dead.

Cost of Vinegar

It is so cheap! You shouldn’t pay more than a few dollars for a gallon it.

Where To Buy Vinegar

Any grocery store, big box store, hardware store, drugstore, and even some convenience stores. Amazon always has several choices as well.

Is Vinegar My Go-To To Kill Mold?

Not typically. Like I mentioned above, it doesn’t tackle mycotoxins and where there is mold there are mycotoxins. There is only one product that I trust completely to kill both mold spores and mycotoxins. If you are interested, you can check out my favorite product to kill mold and mycotoxins here.

I DO like vinegar for mold prevention however and use it as an “after shower” spray. Spraying vinegar on wet or damp surfaces like a shower, bathtub, or inside a washing machine is a great way to prevent mold from taking root. In addition, vinegar works great at preventing mold inside toilet tanks when added weekly.