What does vinegar clean, and what does it damage?

White vinegar is a dilute acid, about 5 percent acetic acid in grocery distilled vinegar and 6 percent in products sold as cleaning vinegar. That acid dissolves mineral deposits, so vinegar is good at hard-water spots, lime around faucets, cloudy film on glass and the mineral part of soap scum. The same acid etches marble, limestone and travertine, is hard on bare iron and aluminum, and reacts dangerously with bleach. Vinegar does little to grease, and it is not a registered disinfectant. This page covers what vinegar removes, what it ruins, what it must never meet, and the hazard figures on its Safety Data Sheet.

Grocery vinegar or cleaning vinegar

New Mexico State University Extension uses distilled white vinegar in all of its cleaning alternatives and compares it with the cleaning vinegars sold for the job: "These vinegars have a strength of 6% acidity compared to 5% in distilled white vinegar," and "the difference in acid is probably not significant" [1]. Cleaning vinegar may also cost more, NMSU notes, and you should read its label for use directions [1].

So the plain gallon from the grocery shelf is the one the published recipes were written for. The UF/IFAS, NMSU and University of Georgia Extension recipes call for white vinegar, with one exception: UGA's aluminum cleaner uses apple cider vinegar [2].

Check the label for the acidity, printed as a percentage, and for any use directions or warnings, which NMSU tells you to follow on cleaning vinegar [1].

The jobs vinegar does well

Vinegar works where the dirt is mineral. The sources that publish vinegar uses give these jobs, each in the source's own terms:

The floor strengths have their home on the floor cleaners page, and the window recipes on the glass cleaner page, each quoted exactly as published.

What vinegar does poorly: greasy film, cooked-on food and body soil. Those need a surfactant (soap or detergent) or an alkali. A little dish liquid in a vinegar spray, as in NMSU's window cleaner with 1/2 teaspoon of dish soap [1], handles both kinds of soil at once, though it changes how the mix behaves (see the dish soap page).

Surfaces vinegar damages

The acid that dissolves scale does not stop at the scale. These are the surfaces where a named source warns against acid:

Marble, limestone, travertine and onyx

These stones are calcium carbonate, the same mineral as hard-water scale. The Miracle Sealants Company's stone care booklet is direct: "Don't use vinegar, lemon juice, or other household cleaners containing acids on marble, limestone, travertine or onyx surfaces" [4]. Acid "will etch or dull the stone surface," leaving a pale, rough spot where the polish used to be [4]. Granite is a different rock, mostly feldspar, quartz and mica, and the same booklet describes it as resistant to acids other than hydrofluoric acid [4]. The booklet still recommends a neutral-pH cleaner for every stone, granite included [4], and the sealer on a granite counter is a separate question; the surface table covers both.

Bare iron, mild steel and aluminum

Alliance Chemical's SDS for 5 percent acetic acid says to keep it in "plastic, glass or stainless-steel containers, not mild steel or aluminum" [5]. That is a storage instruction, about long contact, but it tells you which metals the acid attacks. Cast iron pans, unfinished steel tools and plain aluminum are the household versions. A quick wipe is a different exposure from storage: UGA's aluminum cleaner deliberately uses an acid mix to brighten aluminum [2]. Rinse and dry any metal after an acid cleaner.

Wood

UF/IFAS gives a vinegar solution for wood floors with the warning that wood floors "should never get overly wet" and that you should never put the cleaner directly on the floor [3]. The risk there is water as much as acid. The flooring trade goes further: the National Wood Flooring Association's technical manager says vinegar "can make your finish look dull or even damage the finish" [10]. The floor cleaners page sets out that disagreement and follows the floor or finish maker. For finished furniture and floors with a manufacturer care sheet, follow the sheet.

Grout and stone tile

The stone care booklet also warns against acidic bathroom and grout cleaners on stone [4]. On a stone shower, that rules out vinegar on the grout lines too.

What vinegar must never be mixed with

UF/IFAS puts it plainly: "Mixing bleach with ammonia or vinegar will create toxic fumes" [3]. CDC's rule covers every case at once: never mix bleach with any other cleaner [6]. The chemistry and symptoms for each pair are on the bleach and vinegar and peroxide and vinegar pages. If you have already mixed them, leave the room and follow the steps on the I mixed cleaners page.

Some combinations are not dangerous, just pointless. Vinegar with baking soda or washing soda fizzes because the acid and the alkali neutralize each other, and vinegar with castile soap splits the soap into an oily film. The combinations page explains both.

Vinegar and germs

Grocery and cleaning vinegar carry no EPA registration number, so a vinegar cleaner can be described only by what it cleans. What one 2000 laboratory study found when it tested vinegar against specific bacteria, and why that is a different thing from disinfecting a counter, is on the does vinegar disinfect page.

Two vinegar safety sheets that disagree

A Safety Data Sheet (SDS) is the manufacturer's hazard document for a chemical. Two makers of 5 percent vinegar publish sheets that disagree about its hazard class:

The newer sheet is far stricter. This page follows it for handling because it is current and because eye damage is the hazard it stresses: wear eye protection when you pour a gallon, and if vinegar gets in an eye, rinse with water and follow the steps on the first aid page or call Poison Control at 1-800-222-1222 [9].

Storing vinegar and vinegar mixes

Keep vinegar in its original bottle, tightly closed, in a cool place. The AquaPhoenix sheet adds "protect from freezing" [8]. For containers, the Alliance sheet's list (plastic, glass or stainless steel, not mild steel or aluminum) is the one to follow [5].

Once you mix vinegar into a cleaner, the rules change:

• Put the mix in a bottle labeled with what is in it, never in a food or drink container. NMSU: "Do not use food containers for storing cleaning products" [1]. The bottles and labels page covers what to write on it.
• Store it away from bleach products so the two cannot be confused or combined.
• Make what you will use. UF/IFAS advises mixing only what you need [3], and no published source gives a tested shelf life for a homemade vinegar mix, as the homemade shelf life page explains.

Putting vinegar to work in a published recipe

Most readers come to vinegar through a recipe. The recipe pages quote each published vinegar cleaner exactly, with the source's own limits: start with the bathroom, tub and tile page for scale and soap scum, or the glass cleaner page for windows. If the surface is stone, check the surface table first.

References

1. New Mexico State University Cooperative Extension, Griffiths and Koukel, Green Alternatives to Toxic Household Products and Hazardous Waste (G-313), revised February 2019. https://pubs.nmsu.edu/_g/G313/index.html
2. University of Georgia Cooperative Extension (Pamela R. Turner and Sharon M. S. Gibson), *Green Cleaning: Recipes for a Healthy Home*, HACE-E-73-1 (Green Clean Booklet), revised October 2018. https://site.extension.uga.edu/greenway/files/2024/09/10.18_Green-Clean-Booklet_update.pdf
3. University of Florida IFAS Extension, Griffin and Cantrell, Homemade Household Cleaners (FCS3319), Release Date October 7, 2025. https://ask.ifas.ufl.edu/publication/FY1449
4. Miracle Sealants Company, Natural Stone Care Made Simple: Caring for Your Stone Installation, 2017 edition. https://www.rustoleum.com/~/media/RustoleumUSA/Pages/miracle-sealants/documents/care_guides/Miracle_Sealants_Company_Basic_Natural_Stone_Care_2017.ashx?la=en
5. Alliance Chemical, Safety Data Sheet: 5% Diluted Acetic Acid Food Grade, revised October 20, 2026. https://docs.alliancechemical.com/sds/5-acetic-acid-food-grade
6. Centers for Disease Control and Prevention, Cleaning and Disinfecting with Bleach, last reviewed April 24, 2024. https://www.cdc.gov/hygiene/about/cleaning-and-disinfecting-with-bleach.html
7. N.C. Cooperative Extension, Yancey County Center, Maness, Health Risks of Mixing Household Cleaners, November 1, 2024. https://yancey.ces.ncsu.edu/2024/11/dontmix/
8. AquaPhoenix Scientific, Safety Data Sheet: Distilled White Vinegar 5%, revised August 3, 2012. https://www.cochise.edu/wp-content/uploads/2022/08/Facilities-HVAC-SV-SDS-7-Distilled-White-Vinegar-5-AquaPhoenix-Apr2022.pdf
9. Poison Control (National Capital Poison Center), Poison Statistics: National Data 2024. https://www.poison.org/poison-statistics
10. Wood Floor Business (answers by Rusty Swindoll, National Wood Flooring Association), *Q&As: Steam Mops, Lap Lines & Swirl Marks*, October 2, 2013. https://www.woodfloorbusiness.com/finishing/maintenance/article/15125575/qas-steam-mops-lap-lines-swirl-marks