Can You Use Diluted Bleach On Quartz Countertops?

Quartz countertops are a popular choice for many homeowners due to their durability, aesthetics, and low maintenance. However, like any surface, quartz countertops require occasional cleaning to keep them looking their best. Some homeowners wonder if diluted bleach can be used safely on quartz. Here is a detailed look at whether diluted bleach is recommended for cleaning quartz countertops.

What is Quartz?

Quartz countertops, sometimes referred to as engineered stone, are made from ground natural quartz crystals combined with resins and pigments. The result is a hard, non-porous surface that is resistant to scratches, stains, and heat.

Some key advantages of quartz countertops include:

  • Highly durable and scratch-resistant surface
  • Available in a wide range of colors and patterns
  • Low maintenance compared to natural stone
  • Resists stains better than granite
  • Heat and burn resistant

Is Diluted Bleach Safe for Quartz?

Diluted bleach can be used safely on quartz countertops in moderation. However, it is important not to use too much or use it too frequently. Here are some guidelines for using diluted bleach on quartz:

  • Dilute bleach with water at a 10:1 ratio (10 parts water to 1 part bleach). This helps prevent damage to the surface.
  • Spot test a small inconspicuous area first to check for any adverse effects.
  • Limit use to deep cleaning treatments only a few times per year. Do not use diluted bleach daily or even weekly.
  • Rinse surface thoroughly after bleaching and wipe dry to remove all bleach residue.
  • Never use undiluted or high concentration bleach products on quartz.

Proper Way to Clean Quartz Countertops

For routine daily or weekly cleaning, diluted bleach is too harsh for quartz surfaces. Here are some gentler yet effective cleaning options:

  • Warm water and mild pH-neutral dish soap. Use a soft sponge or cloth.
  • Stone cleaner specifically formulated for quartz and other engineered stones.
  • Mix equal parts white vinegar and water for a simple homemade cleaner.
  • Microfiber cloths help remove dirt and residues without chemicals.
  • Baking soda can be used as a gentle abrasive to remove stains. Mix with water to form a paste.

Avoid quartz-damaging cleaners like:

  • Vinegar or lemon juice (without dilution) which can etch quartz.
  • Harsh chemicals like ammonia, alkaline or acidic cleaners.
  • Abrasive pads or scrubbing brushes that can scratch.

How to Use Diluted Bleach on Quartz

If you wish to occasionally use diluted bleach when deep cleaning quartz, follow these steps:

1. Dilute the Bleach

  • Add 1 part regular bleach to 10 parts water. Never use concentrated or undiluted bleach.

2. Spot Test First

  • Test a small hidden area and let sit for 5 minutes. Check for any surface damage.

3. Clean with Bleach Mix

  • Use a soft cloth dipped in the diluted bleach. Avoid abrasive scrubbing.

4. Rinse Thoroughly

  • Rinse area with clean water and wipe dry with a soft cloth. Ensure no bleach residue remains.

5. Use Occasionally

  • Limit diluted bleach cleaning to once every few months, not daily or weekly.

Signs of Damage From Improper Bleach Use

If too much bleach is used on quartz, you may notice these signs of damage:

  • Discoloration or lightened spots
  • Pitted or etched surface
  • Loss of shine and luster
  • Rough texture or erosion of the surface

Thankfully, quartz is less prone to damage than natural stone. But improper bleach use can degrade its appearance over time.


Diluted bleach can be safely used on quartz countertops occasionally if proper precautions are followed. For regular cleaning, always use gentler soap-and-water based cleaners. Monitor for any signs of discoloration or damage if using diluted bleach. And never use harsh undiluted bleach products on quartz surfaces. With proper care, quartz countertops will retain their beauty and durability for many years.