Can You Use Hydrogen Peroxide on Quartz Countertops?

Hydrogen peroxide is a commonly used household cleaner known for its disinfecting and bleaching properties. It can be an effective cleaner for many surfaces, but is it safe to use on quartz countertops? Here is a detailed overview of using hydrogen peroxide on quartz countertops.

What is Quartz?

Quartz countertops, sometimes called engineered stone, are made from ground quartz crystals combined with resins and pigments. The result is a very hard, non-porous surface that is stain, scratch, heat, and acid resistant. Quartz counters are an increasingly popular option due to their durability and appearance.

Is Hydrogen Peroxide Safe for Quartz?

Hydrogen peroxide can be used safely on quartz countertops in most cases. When diluted with water, hydrogen peroxide does not negatively react with the quartz material or degrade the finish.

Here are some tips for using hydrogen peroxide on quartz:

  • Dilute it – Always mix household 3% hydrogen peroxide with water at a 1:1 ratio before applying to quartz. Full strength hydrogen peroxide could potential etch or discolor quartz.
  • Spot test first – Try a small, inconspicuous spot first to check for any adverse effects.
  • Rinse thoroughly – Make sure to rinse the surface completely after cleaning with hydrogen peroxide solution.
  • Avoid abrasives – Don’t use hydrogen peroxide mixed with abrasive cleaners or scrubbing pads, as these could dull the quartz finish over time.

Cleaning Benefits of Hydrogen Peroxide

When used properly, here are some of the benefits of using diluted hydrogen peroxide for cleaning quartz countertops:

  • Disinfecting – Hydrogen peroxide is a mild bleach that can kill bacteria, viruses, mold, and mildew. This helps keep quartz hygienically clean.
  • Removing stains – Hydrogen peroxide can lift stains from coffee, wine, juice, and other substances that might discolor quartz.
  • Brightening – As a whitening agent, hydrogen peroxide brings out the bright, shiny appearance of quartz surfaces.
  • Deodorizing – Hydrogen peroxide breaks down and neutralizes organic compounds that cause odors, leaving behind a fresh scent.
  • Non-toxic – When used in the diluted form, hydrogen peroxide is a non-toxic cleaner suitable around food surfaces.

How to Clean Quartz Countertops with Hydrogen Peroxide

Here is a simple process for safely cleaning quartz countertops with hydrogen peroxide:

  1. Mix 1 part regular 3% hydrogen peroxide with 1 part water in a spray bottle.
  2. Apply the diluted hydrogen peroxide solution directly to the quartz surface.
  3. Allow it to sit for 2-3 minutes so the peroxide can break down stains and grime.
  4. Scrub using a soft cloth, sponge, or non-abrasive scrub brush. Apply light pressure as needed on stuck-on messes.
  5. Rinse the surface thoroughly with clean water to remove all hydrogen peroxide residue.
  6. Dry the area with a soft, clean towel.

For tough stains, allow the hydrogen peroxide solution to sit for 5-10 minutes before scrubbing. Test on a small area first before applying this method throughout the countertop.

Safety Precautions When Using Hydrogen Peroxide

Take these precautions when using hydrogen peroxide on quartz:

  • Never use full-strength hydrogen peroxide directly on the countertops
  • Don’t mix hydrogen peroxide with vinegar, lemon juice, or other acids
  • Avoid bleach-based cleaners in conjunction with hydrogen peroxide
  • Rinse thoroughly and dry quartz after each cleaning session
  • Wear gloves as hydrogen peroxide can irritate skin with prolonged contact

Other Cleaning Tips for Quartz Countertops

  • For daily cleaning, use a mild soap and water. Wipe down with a soft cloth or sponge.
  • Disinfect quartz regularly with diluted rubbing alcohol.
  • Avoid abrasive cleaners like Comet powder, magic erasers, etc. which can dull the surface.
  • Blot up spills quickly to prevent staining, especially oil, grease, and liquids with strong pigments.
  • Reseal quartz every 1-2 years with a penetrating quartz sealer for added stain protection.


Hydrogen peroxide is generally considered a safe cleaner for quartz countertops when used in the proper diluted concentration. It offers effective disinfecting power against germs, can remove many stuborn stains, and does not negatively react with the quartz material itself. However, hydrogen peroxide should always be diluted, tested first, and rinsed thoroughly after use. Follow the proper procedures and safety precautions, and hydrogen peroxide can be an excellent addition to your quartz cleaning regimen.

Frequently Asked Questions About Using Hydrogen Peroxide on Quartz Countertops

Is hydrogen peroxide a good daily cleaner for quartz countertops?

No, hydrogen peroxide should not be used daily on quartz countertops. For routine cleaning, just use a mild dish soap, sponge, and water. Reserve hydrogen peroxide for occasional deep cleaning purposes.

What ratio of hydrogen peroxide to water is safe for quartz?

A 1:1 solution of hydrogen peroxide and water is recommended. This dilutes the hydrogen peroxide while still allowing its cleaning power. Never use full strength hydrogen peroxide.

Can I mix hydrogen peroxide with baking soda to clean quartz?

Yes, baking soda can be combined with diluted hydrogen peroxide for cleaning quartz countertops. The baking soda provides gentle abrasion while the hydrogen peroxide whitens and disinfects.

Can hydrogen peroxide damage the sealant on quartz countertops?

In most cases, diluted hydrogen peroxide will not degrade or damage quartz sealants, especially high-quality penetrating sealers. However, over time, hydrogen peroxide could potentially wear away at some sealcoatings.

How long should I leave hydrogen peroxide on the quartz before rinsing?

2-3 minutes is usually sufficient for daily cleaning. For tough stains, hydrogen peroxide solution can be left on for 5-10 minutes before scrubbing and rinsing the quartz. Always spot test first.

Is it alright to use hydrogen peroxide on polished quartz finishes?

Yes, hydrogen peroxide can be used on polished, matte, or any finish of quartz countertop, as long as it is diluted and rinsed properly. The dilution prevents any etching or discoloration issues.

Can I pour hydrogen peroxide directly into my quartz sink?

It’s best to avoid pouring concentrated amounts of hydrogen peroxide directly into a quartz sink. Instead, apply the diluted solution to a towel or sponge and scrub the sink. Rinse thoroughly afterward.