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Unveiling the Mystery of Granite Discoloration - Santa Fe Floor Care

Have you experienced your granite under appliances retaining its original color compared to the surrounding areas that have darkened over time? Here’s why and some tips to prevent and manage this issue.

Granite countertops are prized for their beauty and durability, often serving as a central piece in kitchens worldwide. However, homeowners sometimes discover a curious phenomenon: granite under appliances like toaster ovens or beneath placemats retains its original color, appearing lighter compared to the surrounding areas that have darkened over time. This article explores the causes behind this discoloration and offers tips on how to manage and prevent it.

Understanding Granite Discoloration

Granite is a natural stone composed of various minerals, including quartz, feldspar, and mica, which contribute to its color and pattern. While granite is known for its toughness, it is not wholly impervious to the effects of exposure to light, chemicals, and heat.

  • Sunlight Exposure: Constant exposure to sunlight can cause the granite’s color to fade or darken, depending on the types of minerals in the granite. If the granite has been reinforced with resins, the resins may be affected by UV rays. Areas covered by appliances or mats are shielded from these effects, hence they retain their original appearance.
  • Heat and Moisture: Heat from appliances like toaster ovens can influence the coloration around these areas. Moisture, whether from cooking, cleaning, or ambient humidity, can also seep into the stone if not properly sealed, leading to darkening due to mildew or other moisture-related reactions.
  • Chemical Exposure:  In general, granite is very resilient and will not etch from common cleaning agents or spills from acidic substances like vinegar or lemon juice, but some granites have binders that may react with certain chemicals and alter their color. Areas under appliances or mats are often protected from such exposure, preventing these chemical reactions.

Prevention and Remediation

To manage and prevent discoloration of granite countertops, consider the following tips:

  • Regular Sealing: Apply a sealant to granite countertops at least once a year to protect against moisture and chemical penetration. This barrier can help maintain the uniformity of the stone’s color.
  • Consistent Cleaning Practices: Use gentle cleaners specifically designed for natural stone. Avoid harsh chemicals and scrubbing pads that might scratch or etch the surface.
  • Sunlight Management: If possible, use blinds or curtains to minimize direct sunlight exposure on the granite surfaces, especially in areas prone to long-term sunlight exposure.
  • Rotate Accessories: Periodically move appliances, mats, and other items sitting on granite surfaces to allow uniform exposure to light and air.
Santa Fe Floor Care
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Bryant W.
19:58 07 Jan 25
Brian did a fantastic job. Looks new like the day we built our house. He was friendly and professional and I would highly recommend Santa Fe Floor Care to anyone!
Kenny K.
23:09 30 Dec 24
We’ve used these guys twice to seal our tile grout. Professional, reasonable in price, easy to work with.
Rachele B.
18:09 23 Dec 24
We’ve had Santa fe floors come do surface repairs a few times. They are quick, reliable, reasonable and have excellent customer service! I highly recommend them!!
andrew N.
15:21 13 Dec 24
I was absolutely blown away by the exceptional hardwood floor and limestone cleaning service I received from Sante Fe Floor Care for my new construction home. Rodrick, our technician, was not only incredibly knowledgeable but also incredibly professional and courteous. He took the time to explain the entire process, the type of solution they use, and the best practices for future maintenance.The results were nothing short of spectacular. My floors look brand new! The attention to detail and the care he took in cleaning every nook and cranny was truly impressive. I highly recommend Sante Fe Floor Care to anyone seeking top-notch cleaning services, especially for new construction homes. They exceeded my expectations in every way.
Candy C.
16:48 12 Dec 24
We have been using the services of Santa Fe carpet and floors for almost 10 years. We have always been very pleased with the results. The team does excellent work and I'm always very comfortable with them in our home. This visit included tile floor and grout cleaning, and the results were amazing. Thank you, Santa Fe for your excellent work and commitment!
Bo Z.
18:14 11 Dec 24
We recently used Santa Fe Floor Care to clean our tile floor and seal the grout. Both Roderick and Brian were very professional and did a superb job at a reasonable rate. I would highly recommend Santa Fe Floor Care.
Stefania Rigo de R.
20:21 07 Nov 24
Bryan was very professional. He called to inform me he was on his way. Arrived on time and answered all my questions in detail. The carpet had some heavy traffic areas the were quite dirty. They all came out and it looks and smells terrific. I also had grout cleaned and I am very happy with the work. A visible difference in the kitchen and bathroom. I highly recommend Santa Fe. I have used them for over 15 years and they are consistent in their high quality service.
Shannon A.
23:02 27 Sep 24
Very knowledgeable, professional and punctual! We purchased a nine year old home in Sun City, all tile floors with two carpeted bedrooms. The home had been well cared for but the floors needed attention. Mr. Young came out, measured everything and visited with us, made suggestions and then clearly explained the process. We received a very fair quote and all the work was done well within a tight time frame. The floors are stunning! He also did a lovely job on a huge, 40 year old wool oriental carpet. We highly recommend Santa Fe Floor Care!!!Mr. and Mrs. James Armstrong
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