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While no countertop material is truly “heatproof,” granite countertops are extremely resistant to high temperatures. Some types of granite can withstand temperatures up to 1,200 degrees Fahrenheit. However, we don’t recommend placing hot pots and pans directly on granite countertops. Even if it doesn’t scar the granite, it may damage the sealant.

The frequency for sealing granite countertops depends on several factors, including the type of sealant used, the color of the granite, and how heavily the countertops are used. As a general guideline, resealing is often recommended every 12 to 18 months, but some sources suggest it could be as often as every few months or at least once a year.

The type of sealant is a major factor: water-based sealants may need reapplication every six months to a year, while more durable solvent-based sealants can last for five to 10 years. Additionally, factors like heavy kitchen traffic, frequent use of acidic cleaners, and lighter granite colors may require more frequent sealing to prevent staining.

To determine if your countertops need resealing, you can perform a simple water test. Place a few drops of water or a wet paper towel on an inconspicuous area of the granite. After 10 to 15 minutes, check the spot. If the water has beaded up, the seal is still intact. If the water has been absorbed and darkened the stone, it's time to apply a new coat of sealant. You can choose to seal the granite yourself or hire a professional to ensure it's done correctly.

Deciding between marble and granite for kitchen countertops depends on your personal priorities, budget, and style. Both materials have similar costs for material and installation.

Marble offers a luxurious aesthetic and timeless beauty, but it is more expensive and requires more maintenance. It is susceptible to staining and etching from acidic substances like coffee, wine, or tomato sauce if spills are not cleaned up quickly.

Granite is highly durable, heat-resistant, and easier to maintain, making it a practical choice for busy kitchens.

Both materials should be sealed to protect against damage, but they can still be vulnerable to stains if spills are left on the surface for too long.

Marble is high maintenance, like most other types of natural stone flooring. However, because it is naturally a more porous stone, there are a few added care instructions. You will need to clean it often to prevent dirt and grit from scratching the finish and surface, keep it dry, clean up spills immediately, and have it professionally sealed and refinished at least once a year to maintain the shine and water-tight surface. However, investing in maintenance is a smart move because marble floors are among the most beautiful and valuable types of flooring when properly cared for.