Does Water Stain Quartz Countertops?

Quartz countertops are a popular choice for modern kitchens and bathrooms due to their durability, aesthetics, and low maintenance. However, some homeowners may be concerned about the potential for water stains on quartz surfaces. Here is a comprehensive guide on whether water can stain quartz countertops and how to prevent or remove any stains.

What is Quartz?

Quartz countertops, sometimes referred to as engineered stone, are made from ground natural quartz crystals combined with resins and pigments. The quartz content typically makes up 90-94% of the material.

The resins bind the quartz particles together to form a hard, non-porous surface. The pigments add color and pattern. This combination results in a material that is resistant to scratches, stains, heat, and water.

Can Water Stain Quartz?

The short answer is no, water cannot stain quartz countertops under normal conditions. The non-porous nature of quartz prevents water from penetrating the surface and causing stains.

However, there are a few important caveats:

  • Standing water: Allowing water to pool on quartz surfaces for extended periods can cause damage over time. The moisture can corrode the resin binders.
  • Hot pans/pots: Placing hot pans directly from the stovetop onto the quartz can potentially cause thermal shock, surface discoloration, and burns. Always use trivets.
  • pH-altering solutions: Acidic or alkaline liquids like lemon juice, vinegar or harsh cleaners may etch or discolor quartz surfaces with prolonged exposure. Wipe up spills promptly.

With proper care and maintenance, quartz countertops are highly water-resistant and should not stain from routine contact with water.

Does Quartz Stain from Liquids?

Quartz is impressively resistant to staining from most common liquids found in the kitchen. Here is an overview:

  • Water: As mentioned, pure water will not stain or damage quartz. Feel free to wipe up spills as usual without worry.
  • Coffee and tea: These beverages may leave behind some residual staining if allowed to sit for prolonged periods. Wipe up promptly.
  • Wine and juice: Acidic drinks like citrus juice and red wine can etch quartz if left for hours. Blot spills quickly.
  • Oils: Vegetable, olive and other cooking oils do not typically stain quartz. Rinse with warm soapy water.
  • Grease: Non-dyed grease and fat can leave a residue if not cleaned. Use a degreasing cleaner.
  • Dyes: Materials like food coloring or dye-based cleaners could temporarily stain quartz if allowed to soak in.

With quick cleanup of spills, quartz resists stains from most household liquids. Always follow the manufacturer’s care guidelines for your specific product.

How to Prevent Water Stains on Quartz

While quartz itself is non-porous, improper sealing around the edges can allow moisture underneath the surface and into the substrate material. Follow these tips to prevent water stains:

  • Ensure countertops are fully sealed around the edges and seams during installation.
  • Immediately wipe up spills, splashes and condensation. Never allow liquid to pool.
  • Use trivets and hot pads for hot pots and pans. Avoid thermal shock.
  • Clean up spills from acidic substances like juice or vinegar right away.
  • Use a gentle Quartz cleaner to maintain the surface without damaging the resin binders.
  • Resealquartz every 1-2 years for optimal moisture protection.

With conscientious care, quartz countertops can maintain their water-resistant properties for decades.

How to Remove Water Stains from Quartz

If moisture damage does occur, there are ways to remove stains and discoloration from quartz:

  • For surface stains, use a non-abrasive sponge or soft cloth with a mild alkaline cleaner. Avoid acidic cleaners.
  • For dried water marks, try a gentle scrub with baking soda and water. Rinse thoroughly.
  • For stubborn stains, apply a Quartz-safe poultice made with alkaline solvents. Let sit for 24 hours.
  • Seek professional help for significant damage. A quartz restoration specialist can use polishing compounds to resurface the material.
  • As a last resort, damaged quartz may need replacement if stains cannot be removed.

With prompt attention, most water stains can be eliminated to restore the original quartz surface. Preventing water damage is easier and less expensive than repairing it.

Does Water Stain Quartz Worktops?

The same resistance to water stains applies to quartz worktops like kitchen countertops and bathroom vanities. However, proper sealing is even more crucial for these horizontal surfaces.

Follow the manufacturer’s advice diligently to seal all exposed edges of a quartz worktop. This prevents moisture from being absorbed into sides, backsplashes or cutouts.

Wipe up spills, splatters and condensation without allowing extended pooling on the surface. With diligent care, quartz worktops maintain their water-resistant properties and beauty.

Can You Put Water on Quartz Countertops?

There is no issue with having routine contact with water on quartz counters. You can certainly:

  • Set wet glasses down temporarily.
  • Leave spills for a few minutes before wiping up.
  • Rinse fruits/vegetables.
  • Air dry hand-washed dishes.

As long as you blot up standing water reasonably quickly, quartz can tolerate regular use involving water. Just avoid allowing pots or sinks to leak for hours at a time. With basic care, quartz and water get along fine.

Does Quartz Need to Be Sealed from Water?

Quartz itself does not require sealing, unlike natural stone materials like granite. The polymer resins mixed into quartz make it non-porous and water resistant on its own.

However, the edges and seams around sinks and faucets should be properly sealed during installation. This prevents moisture from being absorbed into cracks and crevices. Annual resealing helps maintain water protection.

Is Quartz Absorbent?

One of the chief benefits of quartz over natural stone is that it is non-absorbent and resistant to moisture penetration. Liquids remain on the surface rather than soaking in. This attribute helps quartz resist staining, growth of bacteria, and damage from spills.

Can You Use Quartz Outside?

While quartz offers excellent water protection, prolonged outdoor exposure can be damaging. UV rays can fade color over time. Freezing temperatures may compromise resin seals and cause cracking. Using quartz outside is not recommended. It is designed for interior settings.

Outdoor kitchens and patio areas would benefit fromtrue weather-resistant materials like granite, marble or porcelain. For bathrooms and indoor kitchens,quartz provides optimal moisture protection.


Thanks to advanced manufacturing and resin binders, quartz provides exceptional water-resistance for countertops and surfaces. Under normal indoor conditions, water and liquids cannot penetrate the non-porous material to cause stains. With prompt wipe-ups of spills and proper sealing along the edges, quartz counters can maintain their flawless appearance for decades. Just avoid thermal shock and prolonged exposure to alkalis. With reasonable care, quartz and water can coexist perfectly in a kitchen or bath.