How to Remove Soap Stains from Quartz Countertops


Quartz countertops are a popular choice for many homeowners due to their durability, aesthetics, and low maintenance. However, like any surface, quartz can still be susceptible to stains if not properly cared for. Soap scum stains are a common issue, especially in bathrooms or near kitchen sinks. The good news is, with the right techniques, you can remove soap stains from your quartz countertops and restore their original beauty.

What Causes Soap Stains on Quartz?

Soap stains on quartz are caused by a buildup of residue from hand soaps, dish soaps, shampoos, and other cleaning agents. The fatty acids and minerals present in these soaps can leave behind a film that adheres to the surface. Over time, this film accumulates and darkens, creating unsightly stains. Bathrooms and kitchens are prone to soap stains because of frequent handwashing and dishwashing activities. The stains often appear near sinks, faucets, and backsplashes.

How to Remove Soap Stains from Quartz Countertops

Removing soap stains from quartz requires dissolving and lifting away the fatty soap residue. Acids work well for breaking down the minerals in the stains. However, acidic cleaners must be used carefully to avoid etching the quartz surface. With the right supplies and techniques, you can safely eliminate soap scum stains without damaging the countertops.

What You’ll Need

  • White vinegar or citrus-based cleaner
  • Warm water
  • Soft cloth or sponge
  • Nylon scrub pad or brush
  • Towels

Step-by-Step Guide

  1. Mix a vinegar cleaning solution. Combine equal parts white vinegar and warm water in a spray bottle. For tougher stains, use full-strength vinegar. Citrus-based cleaners also work well.
  2. Apply the cleaner to stained areas. Spray or wipe the vinegar solution directly onto the soap scum stains. Ensure the areas are fully saturated.
  3. Let it sit briefly. Allow the cleaner to sit on the stains for 2-3 minutes. This gives the acids time to break down the residue.
  4. Scrub with a soft cloth or sponge. Use a soft, damp cloth or non-abrasive sponge to gently scrub the stains, lifting away the softened soap scum. Apply light pressure as you scrub.
  5. Use a nylon scrub pad for stubborn stains. For more stubborn stains that resist scrubbing with a cloth, use a nylon-bristled scrub pad. Apply light pressure in a circular motion. This provides extra scrubbing power while still being gentle.
  6. Rinse thoroughly. Once the stains have lifted, rinse the countertops thoroughly with clean water to remove all cleaner and residue. Wipe dry with towels.
  7. Repeat as needed. Check if any faint stains remain. Repeat the process, allowing the cleaner to sit longer before scrubbing again. The stains should disappear with perseverance.
  8. Buff with a dry cloth. Once all stains have been removed, buff the freshly cleaned areas with a dry microfiber cloth. This will strengthen the shine.
  9. Consider re-sealing. Harsh cleaners can strip away quartz’s protective sealant over time. Periodically reapply sealant to renew stain resistance.

Tips for Prevention

  • Rinse soap away thoroughly when washing hands or dishes.
  • Wipe up spills immediately to prevent buildup.
  • Squeegee shower walls after use to minimize residue.
  • Use a soap dish for bars to avoid sitting in soggy puddles.
  • Apply a protective quartz sealant every 1-2 years.
  • Clean quartz regularly with a mild pH-neutral cleaner.

Common Questions

Can I use bleach or other harsh chemicals to remove soap stains from quartz?

No, avoid using bleach, alkaline cleaners, or harsh chemicals. The high pH can damage quartz surfaces. Mild acids like vinegar are safest for soap scum removal.

What about using a magic eraser on quartz stains?

Magic erasers work through mild abrasion. This can slowly erode quartz and make it more stain-prone. Try scrubbing with a soft cloth first before attempting any abrasive scrubbing tools.

How can I make my quartz more stain-resistant?

Applying a penetrating quartz sealant every 1-2 years will make the surface more impervious to stains. Caring for quartz properly by promptly wiping spills will also minimize staining issues.

Will vinegar etching hurt my quartz countertop?

Vinegar is acidic enough to remove soap scum but gentle enough not to etch quartz if rinsed promptly. Allowing vinegar to sit too long can damage the surface. Always rinse immediately after scrubbing.


Removing soap scum stains from quartz countertops is simple with the right cleaning approach. An acidic cleaner like diluted white vinegar can dissolve the stubborn stains with minimal scrubbing. Just be sure to thoroughly rinse the surface afterward and follow up regularly with a pH-neutral cleaner. With proper care, your beautiful quartz countertops will stay looking like new for years.