Can You Mix Clorox and Vinegar?

Clorox and vinegar: why the label says never

Never mix Clorox and vinegar. Clorox liquid bleach is a solution of sodium hypochlorite, and vinegar contains acetic acid. Bleach combined with an acid releases chlorine gas. Clorox's guidance page lists vinegar as forming chlorine gas with bleach and says to always use bleach on its own, and the CDC says never to mix household bleach with any other cleaners or disinfectants. Clorox also sells other products, such as disinfecting cleaners and wipes, and not every one is a bleach product, so check the label of yours.

Chlorine gas irritates the eyes, nose and throat right away, and can cause coughing, chest tightness and trouble breathing. In a bathroom or laundry room, it can concentrate quickly. The trap is that many people add vinegar hoping to boost Clorox against mildew or odor. It does not boost anything. It destroys the hypochlorite you paid for and turns the pail into a gas source.

If you want both a disinfected surface and less odor, do it in steps. Clean with soap and water, apply Clorox exactly as directed on the label, wait for the contact time, rinse, and dry. Use vinegar, if at all, on another day. Vinegar is a household cleaner for some jobs, but EPA does not review its effectiveness against germs, so do not count on it to kill them. Using one after the other with a full rinse and ventilation is different from mixing, but one product per cleaning job is safest.

Laundry is another place this mistake happens. Some people pour vinegar into the fabric softener dispenser and bleach into the drum, and the two could meet mid-cycle. Use them in different loads, run a rinse cycle in between, and read your washer manual for dispenser rules. Toilets and shower drains are the other hotspot, so run water well between products.

If they have mixed, leave the area, get fresh air, and open windows from a distance. Do not add other products to try to fix it. Call Poison Help at 1-800-222-1222, and call 911 for trouble breathing, chest pain, or collapse.

Where these numbers come from

The formulas and default values in this calculator are based on:

• Clorox, How to Clean with Bleach Safely in Your Home - The Do's & Don'ts
• CDC, Cleaning and Disinfecting with Bleach
• Poison Control (National Capital Poison Center), Chlorine gas: Get the facts
• EPA, Can I use common household substances to kill the novel coronavirus? (on vinegar)
• Poison Control (National Capital Poison Center), Need immediate assistance?
• America's Poison Centers, Get Poison Help
• HHS/HRSA Poison Help, What You Can Do. Confirm wording on your bottle

This is general household-cleaning guidance and planning math, not medical or professional advice. Product formulas change, so the label on your bottle always wins: follow its directions and warnings, test a hidden spot first, and never mix cleaning products. For a poisoning emergency call Poison Help at 1-800-222-1222 (US), or 911 if someone has trouble breathing.