Can You Use Bleach Solution on Quartz Countertops?

Quartz countertops are a popular option for kitchens and bathrooms because of their durability, aesthetics, and low maintenance. However, like any surface, quartz can get dirty over time and require cleaning. Some homeowners wonder if bleach solutions are safe to use on quartz. Here is what you need to know about using bleach on quartz countertops.

What is Quartz?

Quartz countertops, sometimes called engineered stone, are made from ground quartz crystals combined with resins and pigments. The quartz provides strength and durability, while the resins bind the material together.

Some key features of quartz countertops:

  • Extremely durable and scratch-resistant surface
  • Available in a wide range of colors and patterns
  • Resists stains and burn marks
  • Low maintenance
  • Non-porous so does not require sealing

Is Bleach Safe for Quartz?

Most quartz manufacturers recommend avoiding harsh chemicals like bleach. Here’s why:

Can Damage Sealant

Quartz itself is non-porous and does not require sealing. However, most quartz countertops have an applied sealant to enhance stain resistance and make cleaning easier. Bleach can wear away or degrade this sealant over time.

Can Discolor or Etch

While quartz is very durable, prolonged exposure to harsh chemicals like bleach can cause discoloration or etching on the surface over time as the sealant breaks down.

Voids Warranty

Using bleach or other harsh chemicals often voids the manufacturer’s warranty on quartz countertops. Most warranties state that only pH-neutral cleaners should be used.

Recommended Cleaners for Quartz

To safely clean quartz and keep it looking beautiful for years, use a gentle pH-neutral cleaner designed for stone surfaces. Here are some good options:

  • Mild dish soap and warm water
  • Stone-specific cleaners (without bleach)
  • Hydrogen peroxide-based cleaners
  • Brands like Soft Scrub, Seventh Generation, Method

Check your quartz manufacturer’s care guide for their specific recommendations. Stick to gentle cleaners without harsh ingredients like bleach, ammonia, acids, or abrasives.

How to Remove Stains from Quartz

For tough stains on quartz, start with a gentle cleaning method like warm water and dish soap. If needed, move up to a non-bleach stone cleaner or hydrogen peroxide.

To remove dried spills, let warm water sit on the stain for several minutes to soften it, then gently scrub with a non-abrasive sponge. Avoid scrubbing too aggressively, as quartz can become hazy over time with repeated hard scrubbing.

For extremely stubborn stains, make a paste with baking soda and water. Let it sit for 5-10 minutes, then scrub gently. Rinse thoroughly. The abrasiveness in the baking soda can help lift stains without damaging the surface.

Maintaining Your Quartz Countertops

With proper care, quartz countertops can stay looking like new for many years. Here are some tips:

  • Use coasters under glasses and trivets under hot pans to prevent marks
  • Immediately wipe up spills
  • Clean with a gentle stone cleaner monthly or as needed
  • Avoid using bleach, acidic, or abrasive cleaners
  • Reapply sealer every 1-2 years for enhanced protection

Can You Use Bleach on Quartz: The Bottom Line

It’s best to avoid bleach and other harsh chemicals on quartz countertops. While quartz itself is durable, the sealant can degrade over time with exposure to bleach. Instead, clean quartz with gentle, pH-neutral stone cleaners to remove daily messes and maintain its beauty. With the right care, quartz countertops can stay looking pristine for decades.

FAQ About Using Bleach on Quartz Countertops

Below are some frequently asked questions about using bleach and other harsh chemicals to clean quartz countertops:

Is it okay to use just a little bleach sometimes?

No, any amount of bleach over time can damage the sealant and lead to etching or discoloration of the quartz surface. It’s best to avoid bleach entirely.

What about using a very diluted bleach solution?

Even diluted bleach can degrade the quartz sealant. It’s safer to use a gentle stone cleaner without bleach or other harsh chemicals.

Can I use bleach to sanitize my quartz countertops?

It’s best to sanitize quartz countertops using a gentler option like hydrogen peroxide or rubbing alcohol. Bleach should be avoided.

What if I already used bleach on my quartz?

If you’ve only used it a few times, resealing the countertops should restore protection. If you’ve used bleach extensively, have the countertops professionally inspected for any damage.

Is it okay to bleach just certain areas of the quartz?

Bleach should never be used on any part of quartz countertops, even for spot cleaning. It can lead to visible damage or etching over time.

Are other stone countertops like marble sealed the same way?

Yes, other natural stone countertops have a similar sealant applied. Any stone surface should be cleaned only with gentle, pH-neutral cleaners.

How can I remove old stains if I can’t use bleach?

For old stains, use a baking soda paste and gentle scrubbing. For tough grease stains, try an eco-friendly degreasing cleaner. Avoid abrasives that could scratch the surface.


Quartz countertops are a gorgeous, functional addition to any kitchen or bath. While their durable composition allows them to withstand daily use, harsh chemicals like bleach can degrade their protective sealant over time. To keep quartz countertops in pristine condition, use only gentle, pH-neutral cleaners. Avoid bleach and other harsh chemicals that can lead to discoloration, etching, and loss of the manufacturer warranty. With the proper care methods, quartz countertops can stay looking like new for decades.