How to Remove Metal Stains from Quartz Countertops

Quartz countertops are popular in many homes due to their durability, aesthetics, and low maintenance. However, like any surface, quartz can get stained over time, especially by metals like iron, copper, and silver. Don’t worry – removing metal stains from quartz is possible with the right techniques. Here is a comprehensive guide on how to remove metal stains from quartz countertops.

What Causes Metal Stains on Quartz?

Metal stains on quartz surfaces are caused by:

  • Iron or rust stains from cookware or appliances placed on the countertop
  • Copper stains from pennies, pipes, or cookware
  • Silver/gray stains from silverware and jewelry making contact with the surface
  • Other metal deposits like lead or mercury

Acidic foods and drinks like wine, fruit juices, and vinegar can also react with metal to form stubborn stains. The porous nature of natural stone makes it prone to absorbing these stains over time.

Steps to Remove Metal Stains from Quartz

Removing metal stains from quartz requires using the right cleaning agents. Here are the step-by-step instructions:

Clean with Dish Soap and Baking Soda

For light stains, mix a few drops of dish soap with some baking soda and scrub the stained area with a soft cloth or non-abrasive sponge. Baking soda is a mild abrasive that can help lift metal stain residues. Rinse thoroughly after scrubbing.

Use a Quartz Cleaner or Stone Cleanser

For tougher stains, use a specialized quartz or stone countertop cleaner, which contain chemicals like ammonia and alcohol that can cut through metal deposits. Follow the product instructions closely. Apply the cleaner directly on the stain, let it sit for 5-10 minutes, and scrub with a soft cloth. Rinse with water afterwards.

Make a Poultice

For stubborn metal stains that don’t budge, make a poultice – a paste made of an absorbent material like talc or flour mixed with water or hydrogen peroxide. Apply the paste to the stained area, cover it with plastic wrap, and let it sit overnight before scrubbing and rinsing. The poultice will draw out the stain.

Use Lemon Juice or Vinegar

Lemon juice and vinegar are acidic products that can dissolve metal stains on quartz. Pour some lemon juice or vinegar directly on the stain, allow to sit for 30 minutes, and scrub with a soft cloth. For tougher stains, mix lemon juice with cream of tartar or salt for extra abrasive action.

Try Barkeeper’s Friend

Barkeeper’s Friend is a commercial cleaning powder that contains oxalic and citric acid to tackle all kinds of mineral deposits and stains. Make a paste with Barkeeper’s Friend and water, apply on the stain for at least an hour, and scrub. It can remove even engraved metal marks on quartz.

Consult a Professional as Needed

For metal stains that cannot be removed with standard DIY methods, consult a professional quartz restoration company. They have access to more powerful cleaners like hydrogen fluoride that can dissolve stubborn metal oxide deposits without damaging the quartz surface. This may be needed for aged stains.

Tips to Prevent Metal Stains on Quartz

Prevention is the best way to deal with metal stains on quartz:

  • Use coasters under copper mugs or stemware
  • Don’t leave metal cookware sitting on quartz
  • Avoid placing iron supplements/vitamins directly on the counter
  • Clean up food spills immediately to prevent staining
  • Seal and reseal quartz regularly to make it more stain resistant
  • Use trivets or hot pads under hot pans and baking dishes

With proper care, it is possible to keep quartz gleaming and stain-free for years. Follow these metal stain removal techniques to restore its original beauty. Be patient and persistent, and your quartz countertops will look as good as new.

Frequently Asked Questions

Can I use bleach to remove metal stains from quartz?

No, avoid using bleach or chlorine-based cleaners on quartz as they can damage and discolor the surface. Opt for cleaners specifically formulated for quartz instead.

What if the metal stain has engraved the quartz surface?

Deeply engraved stains are harder to remove. Try a poultice, Barkeeper’s Friend, or consult a professional quartz restoration company – they have access to stronger chemicals that can dissolve the deposits within the engraving.

I have a copper sink – will this stain my quartz countertop?

Copper sinks can potentially leave stains where they meet the countertop. Apply a quartz sealer during installation and reseal annually to make the surface more stain-resistant. Also, wipe any water or drips from the copper sink immediately.

Can I use a magic eraser to remove metal marks?

Magic erasers are too abrasive for quartz and can damage the surface. Use a soft cloth or non-abrasive sponge instead when scrubbing stains. Check the cleaner’s instructions first.

What kind of vinegar works best for removing metal stains?

Opt for white distilled vinegar, apple cider vinegar, or red wine vinegar. Diluted acetic acid in vinegar dissolves metal oxides. Avoid balsamic, rice, or flavored vinegars as they may stain.


Metal stains on quartz countertops are unsightly but treatable with some cleaning elbow grease using baking soda, hydrogen peroxide, commercial cleaners, or acidic products like lemon juice and vinegar. For really stubborn stains, try making a poultice or seek professional help. With the right technique, you can successfully remove metal stains from quartz and restore its original beauty and shine. Be attentive during cooking and cleaning to prevent metal from engraving the quartz surface. With regular care and maintenance, your quartz countertops will stay pristine for years.