How to Remove Soap Scum from Quartz Countertops


Quartz countertops are popular in many homes due to their durability, affordability, and low maintenance. However, soap scum buildup can occur over time, leaving unsightly stains and films. Removing soap scum from quartz requires using the right techniques and products to avoid damaging the surface. With some simple cleaning steps, it’s possible to keep quartz looking like new.

What Causes Soap Scum on Quartz?

Soap scum forms when soap residues are left to dry on the countertop surface. Hard water minerals react with soap to create a sticky film. Oils, grease, and dirt then adhere to this film, creating more buildup over time. Bathroom countertops around sinks see the most soap scum since this is where hands are washed frequently. Kitchen counters may also be prone around the sink area.

Best Cleaners for Removing Soap Scum from Quartz

It’s important to use the right cleaning solutions when tackling soap scum on quartz. Here are some of the best options:

  • Vinegar – White vinegar is a mild acid that breaks down soap scum effectively. Mix equal parts vinegar and water for cleaning quartz.
  • Baking Soda – Forms a gentle abrasive scrub when mixed with water. Helps lift soap scum off the surface.
  • Ammonia – Cuts through grease and soap scum with its alkaline properties. Dilute with water before using.
  • Hydrogen Peroxide – The bubbling action of hydrogen peroxide helps dislodge grime from the quartz pores.
  • Dish Soap – Forms a surfactant solution to dissolve sticky soap scum deposits. Use a mild eco-friendly variety.

Avoid harsh chemical cleaners like bleach, alkaline lime removers or acidic toilet bowl cleaners as these can etch and dull the quartz surface.

Step-By-Step Guide to Clean Quartz Countertops

Follow these steps for the best results removing soap scum from quartz:

1. Dry Clean the Surface

Wipe down the countertop with a microfiber cloth to remove excess dirt and debris first. This prevents more scrubbing later.

2. Apply the Cleaning Solution

Spray or wipe your chosen cleaner directly onto the soap scum coated areas. Let it sit for 5 minutes.

3. Scrub with Soft Scrubber

Use a soft scrub brush, sponge or cloth to gently agitate the fizzing cleaner. Apply light pressure while scrubbing in circles.

4. Rinse Thoroughly

Wipe away all the cleaning solution with a damp microfiber cloth. Ensure no soap residues are left behind.

5. Dry Completely

Go over the quartz countertop with a dry terry cloth towel to absorb any moisture. Preventing water marks and new buildup.

6. Finish with Quartz Polish

Finally, apply a quartz-specific polish like Granite Gold to protect the surface shine. Buff to a streak-free finish.

Tips for Preventing Soap Scum Buildup

Once you’ve removed all the soap scum, keep it away with these tips:

  • Wipe down quartz counters after each use to prevent grime accumulation.
  • Use a quartz cleaning spray daily for easy upkeep cleaning.
  • Apply a squeegee on the countertop after washing hands or dishes.
  • Consider a water softener if you have hard water issues.
  • Install an exhaust fan above sinks to reduce moisture.
  • Limit soap products directly on the quartz surface.
  • Seal quartz every 6-12 months with a penetrating sealer.
  • Avoid oil-based skincare products on bathroom quartz counters.

Can You Use Magic Erasers on Quartz?

Magic erasers work well for soap scum removal on quartz counters when used gently. The melamine foam chemistry helps lift off sticky buildup without abrasive scratching. However, take care not to rub aggressively on a single spot as this can dull the surface over time. Limit magic eraser use to stubborn stains and combine with a cleaner for best results.

How to Remove Dried Soap Scum from Quartz?

If soap scum is left to dry for a long time, removing it can be more difficult. Here are some tips for eliminating dried-on soap scum from quartz:

  • Let vinegar or ammonia cleaner soak for 10-15 minutes to soften the hardened scum.
  • Use a plastic putty knife to carefully scrape the buildup away after soaking.
  • Mix baking soda and water into a spreadable paste. Apply and leave for an hour before scrubbing.
  • Upgrade to more powerful cleaners like Krud Kutter or Zep products for thick soap scum.
  • Try a diluted bleach cleaner as a last resort if other methods fail. Start with a 10:1 water dilution.
  • Worst case, use a buffing pad under a polisher to remove stubborn soap scum deposits.

With consistent cleaning, you can avoid the difficulty of removing dried soap scum from quartz counters. Stay vigilant in wiping up spills and cleaning after use.

Common Questions About Removing Soap Scum from Quartz

Can I use vinegar and water to remove soap scum from quartz?

Yes, vinegar’s acidic properties break down the mineral deposits in soap scum effectively. Mix equal parts white vinegar and water in a spray bottle. Spritz over soap scum stains, let sit 5-10 minutes then scrub and rinse off.

What about using baking soda?

Baking soda also works well as a gentle abrasive cleaner for quartz soap scum. Make a paste with water, spread over the stains and let sit for an hour before scrubbing and rinsing clean.

Should I use a quartz cleaner or all-purpose cleaner?

Look for a specially formulated quartz cleaner. All-purpose cleaners may contain harsh ingredients. However, a mild eco-friendly all-purpose cleaner diluted with water can also be safely used on quartz counters.

How can I get soap scum off quartz grout lines?

Use a grout brush with bristles that can get into the crevices. Apply cleaner and scrub along grout lines to remove soap scum residue. Avoid excessive pressure to prevent scratching the quartz.

Is there a quick way to get soap scum off quartz?

For quick cleaning, spray cleaner onto a Magic Cleaning Eraser and rub over soap scum. Don’t repeatedly scrub one spot. Alternate with circular motions for 2-3 minutes then rinse thoroughly. Wipe dry immediately after.


Soap scum buildup happens over time on quartz countertops but can be removed with the right techniques. Using vinegar, baking soda, ammonia, hydrogen peroxide or detergents can help dissolve the sticky film. Gentle scrubbing and thorough rinsing keeps quartz counters looking clean. With vigilant daily cleaning and prevention habits, soap scum can be effectively managed.