How to Clean Cosmos Quartz Countertops

Quartz countertops are a popular choice for many homes due to their durability, stain resistance, and stylish appearance. Cosmos Quartz is one brand that offers high-quality engineered stone countertops in a wide range of colors and patterns. While quartz is easy to maintain, it does require regular cleaning to keep it looking its best. Here is a comprehensive guide on how to clean Cosmos quartz countertops.

Supplies Needed

Cleaning cosmos quartz countertops does not require any special cleaners. You likely already have everything you need:

  • Mild dish soap or stone cleaner
  • Soft cloth or sponge
  • Water
  • Microfiber towel

Optionally, you can use:

  • Glass cleaner
  • Non-abrasive scrub pad

Avoid using:

  • Vinegar, ammonia, or bleach – these can dull the surface
  • Abrasive cleaners or pads – they will scratch the quartz

Routine Cleaning

For routine cleaning, a mild soap and water solution is all you need. Here are the steps:

  1. Mix a few drops of mild dish soap with warm water in a bucket or spray bottle. Avoid using too much soap.
  2. Dampen a soft cloth or sponge with the solution.
  3. Wipe down the entire surface of the quartz countertop. Apply light pressure as you wipe.
  4. Rinse the countertop thoroughly with clean water to remove all soap residue.
  5. Dry the surface completely with a clean microfiber towel.

This quick cleaning procedure can be done daily or weekly to remove light dirt, dust, fingerprints, and other accumulated grime.

Deep Cleaning

For a more thorough occasional cleaning, use a non-abrasive scrub pad and glass cleaner along with dish soap and water. Here is the process:

  1. Sweep or wipe down the quartz to remove any loose debris.
  2. Apply a small amount of mild dish soap to the surface and use a damp sponge to lather it up.
  3. Pour some glass cleaner onto the scrub pad and scrub the entire countertop surface. Apply light pressure as you scrub.
  4. Rinse the surface thoroughly with clean water. Wipe away any soapy residue.
  5. Spray a light mist of glass cleaner over the surface. Use a dry microfiber cloth to buff the countertop. Buffing will create extra shine and eliminate streaks.
  6. Repeat rinsing and completely dry the surface.

Deep cleaning every 1-2 months will keep the quartz sparkling.

Tough Stain Removal

Cosmos quartz resists stains remarkably well. But highly pigmented spills like wine, coffee, juice, or tomatoes can occasionally stain if left too long. Here is how to remove tough stains:

  1. Wipe up the spill immediately with an absorbent cloth. The quicker you act, the better chance of avoiding a stain.
  2. Mix up a cleaning paste of 2 parts baking soda to 1 part water. Spread the paste over the stain and let it sit for 5-10 minutes.
  3. Scrub the paste with a soft cloth or non-abrasive sponge. Apply light pressure.
  4. Rinse thoroughly and dry the area. Repeat if needed.
  5. Use a poultice cleaner specifically made for quartz for persistent stains. Follow product instructions carefully.
  6. For really stubborn stains, seek help from a professional stone restoration service. Harsh chemicals may be needed that are unsafe for DIY use.

Maintenance Tips

Follow these tips to keep cosmos quartz countertops looking like new:

  • Use cutting boards and trivets to protect from scratches and burns.
  • Clean up spills immediately before they have a chance to soak in.
  • Avoid using abrasive cleaners or scouring pads that can dull the surface.
  • Have the countertops resealed every 2-3 years by a professional to refresh stain protection.
  • Rinse the countertop after using acidic foods like lemon juice. Acid can etch the surface.
  • Use a hot pad or trivet under hot pans and appliances. Quartz can be damaged by extreme heat.

With regular cleaning and proper care, cosmos quartz countertops will maintain their good looks and perform beautifully for decades. Follow these tips to keep them clean and enjoy their stylish appearance.

Frequently Asked Questions

What cleaners should be avoided on quartz?

Avoid vinegar, bleach, ammonia, alkaline, or acidic cleaners. Also avoid abrasive powders and scouring pads. Only use mild dish soap or stone-safe cleaners.

Does quartz need to be sealed?

Quartz does not require sealing. However, resealing every 2-3 years helps renew stain resistance. Consult a pro for sealing, as DIY sealants may discolor the surface.

How can I get rid of hard water marks?

Hard water deposits can be cleaned with a 50/50 vinegar and water solution. Wipe the area with solution and rinse thoroughly. For stubborn deposits, use a poultice cleaner formulated for quartz.

Can I use rubbing alcohol to disinfect quartz?

Yes, rubbing alcohol is safe for occasional disinfecting. Allow the surface to dry completely afterwards. Avoid other disinfectants like bleach.

What should I do for hazy-looking quartz?

Restore the shine by cleaning with a mix of glass cleaner and dish soap. Use a soft scrub pad in the direction of the polish lines. Rinse and dry thoroughly after scrubbing.


Cosmos quartz countertops are low-maintenance, but regular cleaning is essential. By using proper cleaning techniques and avoiding harmful products, you can safely keep quartz surfaces shining beautifully for years. Be sure to wipe spills quickly, follow routine cleaning methods, and watch for signs that deep cleaning or professional help is needed. With just a bit of care, quartz countertops will retain their elegant, like-new appearance.