What Disinfectant Can Be Used on Quartz Countertops?

Quartz countertops are popular choices for kitchens and bathrooms thanks to their durability, aesthetics, and low maintenance. However, like any surface, quartz countertops require occasional cleaning and disinfecting to keep them looking their best and free of harmful bacteria. When choosing a disinfectant for quartz, it’s important to select one that is effective yet gentle enough not to damage the material.

Understanding Quartz Countertops

Quartz countertops, sometimes referred to as engineered stone, are made from ground quartz crystals combined with resins and pigments. The quartz makes the material very hard and scratch-resistant, while the resins bind it together into a solid slab. The end result is a non-porous surface that resists staining and stands up well to heavy use.

Unlike natural stone, quartz countertops do not require regular sealing. Their non-porous nature means liquids cannot penetrate into the material and cause stains. However, spills should still be wiped up promptly to prevent the possibility of staining over time. Routine cleaning and disinfecting helps maintain the pristine look of quartz counters.

Choosing the Right Disinfectant

When it comes to choosing a quartz countertop disinfectant, it’s important to avoid products containing:

  • Bleach – can damage the pigments and destroy the glossy finish over time.
  • Vinegar – while safe for cleaning, it does not effectively disinfect.
  • Ammonia – can leave a cloudy film on the surface.
  • Abrasive powders – can scratch the smooth finish.

Instead, look for disinfectants made specifically for quartz and other engineered stone. These products contain gentle ingredients designed to kill germs without harming quartz.

Recommended Active Ingredients

Some of the best active ingredients to look for in quartz disinfectants include:

  • Hydrogen peroxide – oxidizing agent that kills germs and breaks down organic matter. Effective disinfectant that is safe for quartz.
  • Citric acid – derived from citrus fruits, provides a deep cleaning action to remove bacteria without dulling quartz surfaces.
  • Lactic acid – gentler alpha hydroxy acid found in milk and fruit. Disinfects and brightens quartz.
  • Alcohol (ethanol or isopropyl alcohol) – fast-evaporating disinfecting agents that do not leave residue.
  • Quaternary ammonium compounds – effective germ-killing ingredient compatible with engineered stone.

Disinfectant Formulas to Avoid

Steer clear of quartz cleaners that contain:

  • Sodium hypochlorite (bleach)
  • Acetic acid (vinegar)
  • Ammonium hydroxide (ammonia)
  • Phosphoric or hydrofluoric acid
  • Abrasive powders like baking soda or Comet

Using these ingredients can damage and dull the quartz over time with regular use. Stick to gentler disinfectants specifically designed for engineered stone for the best results.

How to Disinfect Quartz Countertops

Disinfecting quartz counters is a quick and simple process:

  1. Remove all items from the countertop.
  2. Clean surface with warm water and mild soap to remove dirt and debris. Rinse well with clean water.
  3. Apply your chosen quartz-safe disinfectant to the entire surface. Let it sit for the recommended contact time to kill germs.
  4. Rinse thoroughly with clean water and dry with a soft microfiber cloth.

For a deeper periodic cleaning, use a non-abrasive scrubbing pad with your disinfectant to gently remove any dried spills or residues. Focus on high traffic areas like around the sink and stove.

Be sure to read and follow label directions for application times and proper ventilation. Never mix cleaners together under any circumstances.

Recommended Quartz Countertop Disinfectants

Here are some top options for quartz-safe disinfecting:

  • Method Antibacterial Cleaner – Non-toxic formula with thyme essential oil kills 99.9% of bacteria.
  • Clorox Disinfecting Wipes – Bleach-free wipes use quaternary ammonium to disinfect.
  • Lysol Kitchen Pro Disinfectant Spray – Kills over 50 microorganisms with hydrogen peroxide.
  • Seventh Generation Disinfectant Spray – Botanical extracts like thymol disinfect quartz.
  • MRS Meyers Clean Day Multi-Surface Everyday Cleaner – Plant-derived salicylic acid disinfects gently.
  • Bar Keeper’s Friend Cleanser – Powder with oxalic acid cuts through spills on quartz.

Always spot test cleaners in an inconspicuous area first to ensure they do not damage or etch the quartz. With the right gentle disinfectant used properly, you can safely sanitize your beautiful quartz countertops.

Frequently Asked Questions

What is the best way to disinfect a quartz countertop?

Use a disinfectant specifically formulated for quartz and other engineered stone. Spray onto the surface, allow to sit for the recommended contact time, then rinse thoroughly. Avoid bleach, vinegar, and abrasive cleansers.

How often should I disinfect my quartz countertops?

Disinfect high use areas like around the sink after each use. Disinfect the entire surface once or twice per week or whenever visibly soiled.

Can I use rubbing alcohol to disinfect quartz?

Yes, isopropyl alcohol (70% concentration) can be used to safely disinfect quartz countertops. Wipe on and allow to air dry.

What about hydrogen peroxide?

Hydrogen peroxide-based disinfectants are excellent choices for disinfecting quartz surfaces without damage. Check the concentration level before using.

Can I use vinegar to clean my quartz countertops?

Vinegar is fine for cleaning quartz but will not effectively disinfect the surface. Use a quartz-safe disinfectant instead for sanitizing the counters.


Regular disinfecting is key to keeping quartz counters clean and hygienic. Be sure to use specialized disinfectants made for engineered stone rather than harsh chemicals that can damage the material. With the right products and techniques, you can safely eliminate bacteria without compromising the look and longevity of your beautiful quartz countertops. Invest in quality quartz disinfectants and make sanitizing a regular part of your cleaning routine.