How to Remove Sumdges from Quartz Countertops

Quartz countertops are a popular choice for modern kitchens and bathrooms because of their durability, stain resistance, and stylish appearance. However, like any surface, quartz can get stained and damaged over time, leaving unsightly marks known as sumdges. Removing these sumdges takes some effort, but it can be done with the right techniques and products.

What Causes Sumdges on Quartz?

Sumdges are stains that etch into the surface of quartz countertops. They appear as light scratches or worn areas that look different than the surrounding material. Common causes of sumdges include:

  • Spills from acidic foods like tomatoes, lemons, and vinegar that are not wiped up quickly
  • Heat damage from hot pots and pans
  • Aggressive scrubbing with abrasive cleaners or scouring pads
  • Dropping heavy or sharp objects on the countertop

The quartz surface is very hard, but it can still get damaged from these types of incidents, especially over time with repeated exposure. The porous nature of quartz means liquids can seep into tiny pits and cause etching or corrosion.

Cleaning and Polishing for Minor Sumdges

If the sumdges are relatively minor, you may be able to reduce their appearance just with cleaning and polishing. Here are some tips:

Use a gentle cleaner designed for stone surfaces: Avoid harsh chemicals and abrasives. Look for a cleaner made specifically for quartz that contains no acidic ingredients.

Try a baking soda paste: Make a paste with baking soda and water and gently rub it over the sumdged areas using a soft cloth. The abrasiveness can help lift some staining while being gentle enough not to scratch the surface further.

Polish with a quartz polish product: Use a POLISH made for quartz countertops to help restore some of the luster and make sumdges less noticeable. Apply with a soft cloth and rub gently.

Buff with a microfiber cloth: Finish by rubbing the area vigorously with a microfiber cloth to create friction and heat that further buffs and smooths the surface.

Removing Stubborn Sumdges

For more stubborn sumdges that don’t respond to just cleaning and polishing, you’ll need to take more aggressive action. Here are some options:


Gently sanding the affected areas with fine-grit sandpaper can physically wear down the top layer and remove etching. Start with something like 400-grit paper and work up to higher numbers for a smoother finish. Be very careful not to sand too aggressively or you may create deeper scratches.

Abrasive Cleansers

Look for a specially formulated abrasive cleanser made for quartz countertops. These provide light abrasion to wear down stains but are designed not to damage the surface. Bar Keepers Friend is one popular brand. Test on an inconspicuous spot first and limit scrubbing time.

Etch Remover Chemicals

You can find etching remover products made specifically for stone and quartz surfaces. These usually contain acids that work to dissolve away the damaged top layer. Follow all safety precautions when using these harsh chemicals. Thoroughly rinse the area afterward.

Professional Resurfacing

For severe sumdges or overall resurfacing of the countertops, you may want to hire a professional. Companies can come refinish quartz using specialized tools and techniques to remove stains and restore the appearance. This is the most expensive option but may be necessary for heavy damage.

Tips to Prevent Sumdges

Preventing sumdges in the first place will save you the work of trying to remove them. Here are some handy tips:

  • Wipe up spills immediately, especially acidic substances
  • Always use cutting boards and hot pads
  • Don’t let oils, soap residue or liquids soak into the surface
  • Avoid abrasive cleaners and scouring pads
  • Apply a penetrating sealer yearly to add protection
  • Handle heavy objects carefully to avoid drops and impacts

With proper care and prompt cleanup, you can keep your quartz looking like new for many years before sumdges become a problem. But if stains do occur, use these removal techniques right away so they don’t become permanent etchings. With some effort and the right products, you can restore the original beauty of your quartz.

Frequently Asked Questions

What are some common cleaners I should avoid on quartz countertops?

Vinegar, lemon juice, bleach, ammonia, alkaline heavy-duty cleansers, and anything acidic should be avoided, as these can etch or discolor the surface.

Will baking soda scratch my quartz?

No, baking soda is soft enough that it will gently polish withoutscratching. Avoid harsh abrasives like Comet or Ajax.

Is it okay to use Magic Erasers on quartz stains?

No, the melamine foam in Magic Erasers is too abrasive for quartz. It can wear down the finish. Use with caution if at all.

How can I prevent sumdges from scratches?

Use cutting boards, trivets and hot pads religiously to prevent scratching and heat damage. Clean spills quickly before they soak in and stain.

Will resurfacing get rid of all blemishes?

Resurfacing can eliminate etching, scratches, and discoloration by refinishing the top layer. Deep damage may still remain somewhat visible though minimized.


Quartz countertops bring stylish durability to kitchen and bath spaces but still require some care and maintenance. By understanding what causes sumdges and learning the right techniques to remove them, you can restore your countertops’ original beauty. With prompt cleanup of spills, avoiding abrasives, and protecting the surface from damage, you can also prevent many sumdges in the first place. Keep this guide handy and use these tips to keep your quartz countertops looking like new.