Can water discolor granite?

Can water discolor granite? This is a common question among homeowners who have granite countertops or floors in their homes. Granite is a popular choice for home decor due to its durability, aesthetic appeal, and resistance to heat and scratches. However, it is susceptible to discoloration if not properly maintained.

Water is a common culprit of granite discoloration, particularly hard water that contains minerals such as calcium and magnesium. When water is left to sit on granite surfaces, it can seep into the pores of the stone and cause discoloration over time. In this article, we will explore how water can discolor granite, the types of water that are most likely to cause discoloration, and how to prevent and remove water stains from granite surfaces.

Removing Water Discoloration from Granite: Tips and Tricks

If you have granite countertops in your kitchen or bathroom, you know how beautiful they can look when properly cared for. However, one common issue that many people face is water discoloration on their granite surfaces. This can be caused by hard water, soap scum, or other mineral buildup. Fortunately, there are a few simple tips and tricks you can use to remove water discoloration from your granite surfaces.

Cleaning with Soap and Water

The first step to removing water discoloration from granite is to clean the surface thoroughly with soap and water. Use a gentle dish soap and warm water to clean the surface, being sure to rinse thoroughly with clean water. This will remove any surface dirt or debris that may be contributing to the discoloration.

Using a Poultice

If soap and water alone don’t do the trick, you can try using a poultice. A poultice is a paste-like substance that is applied to the surface of the granite and left to sit for a certain amount of time. The paste will absorb the minerals and other impurities that are causing the discoloration, leaving the surface clean and clear.

DIY Poultice Recipe

You can make your own poultice at home using a few simple ingredients. Mix together baking soda and water to create a paste, then apply the paste to the discolored area of the granite. Cover the paste with plastic wrap and let it sit for 24 to 48 hours. After the paste has dried, remove it with a plastic scraper and rinse the surface thoroughly with water.

Preventing Future Discoloration

Once you’ve removed the water discoloration from your granite, it’s important to take steps to prevent future buildup. One easy way to do this is to wipe down your granite surfaces regularly with a soft, damp cloth. Avoid using harsh or abrasive cleaning products, as these can damage the surface of the granite over time.

Water discoloration on granite surfaces can be frustrating, but with a few simple tips and tricks, you can remove the buildup and restore your countertops to their original beauty. By cleaning regularly and using a poultice as needed, you can keep your granite looking great for years to come.

Why Does Granite Turn Dark When Wet? Explained

Granite is a popular stone used for construction, countertops, and other decorative purposes. One of its unique properties is that it can turn dark when wet. This phenomenon is caused by several factors.

Minerals in Granite

Granite is made up of several minerals, including quartz, feldspar, and mica. These minerals have different colors and reflect light differently. When granite is dry, light reflects off the minerals, giving it a lighter color. However, when granite is wet, the minerals absorb water, making them darker and less reflective. This change in color is temporary and will disappear once the granite dries out.

Porousness of Granite

Another factor that contributes to granite turning dark when wet is its porousness. While granite is a hard and durable stone, it can still absorb water if it is not properly sealed. When water penetrates the surface of the granite, it can darken the stone by filling in the tiny pores and spaces between the minerals. This can make the granite appear darker and more uniform in color.

Iron Oxidation

In some cases, granite can turn a rusty red color when wet. This is caused by the oxidation of iron minerals in the stone. When exposed to water, the iron minerals can rust and turn the stone a reddish-brown color. This is more common in certain types of granite that contain higher levels of iron.

Overall, the darkening of granite when wet is a natural and temporary occurrence. It is caused by the absorption of water into the stone, which can change the way light reflects off the minerals and fill in the pores and spaces between them. While this may be a concern for some, it is important to remember that it is a natural property of the stone and does not indicate any damage or deterioration.

Can Water Damage Granite? Exploring the Effects of Leaving Water on Granite

Granite is a popular choice for countertops, flooring, and other home surfaces due to its durability and aesthetic appeal. However, many people wonder if water can damage granite.

Can water damage granite?

The short answer is no. Water alone cannot damage granite.

Effects of leaving water on granite

While water itself cannot damage granite, leaving water on granite for an extended period can cause some issues. If water is left on granite for too long, it can cause mineral buildup and water spots.

Mineral buildup

Mineral buildup occurs when water evaporates from the surface of the granite, leaving behind minerals such as calcium and magnesium. Over time, this mineral buildup can cause discoloration and a rough texture on the surface of the granite.

Water spots

Water spots occur when water is left on the surface of the granite for an extended period. As the water evaporates, it can leave behind a visible mark or ring. While water spots are not harmful to the granite, they can be unsightly and difficult to remove.

Preventing water damage to granite

The best way to prevent water damage to granite is to clean up any spills or standing water immediately. Use a soft, dry cloth to wipe up any water and avoid using acidic or abrasive cleaners on the granite surface.


While water alone cannot damage granite, leaving water on the surface of granite for an extended period can cause mineral buildup and unsightly water spots. By promptly cleaning up any spills or standing water and avoiding harsh cleaners, you can keep your granite looking beautiful for years to come.

Exploring the Effects of Water on Granite Color: Myth or Fact?

Granite is a popular choice for countertops and flooring due to its durability and aesthetic appeal. However, there is a common myth that water can affect the color of granite over time. But is this really a fact or just a myth?

What is Granite?

Granite is a natural stone that is formed from the slow crystallization of molten magma below the Earth’s surface. It is composed mainly of quartz, feldspar, and mica, giving it its unique appearance and durability. Granite is available in a wide range of colors and patterns, making it a popular choice for various applications.

The Myth of Water on Granite Color:

There is a common belief that water can change the color of granite over time. The myth goes that water seeps into the pores of the granite and causes discoloration or staining. However, this is not entirely true.

Exploring the Effects of Water on Granite:

Water is not harmful to granite, and it won’t change its color. In fact, granite is resistant to staining and discoloration, making it an excellent choice for areas with high moisture levels, such as bathrooms and kitchens. However, certain minerals in water, such as iron and magnesium, can leave behind deposits that can affect the appearance of the granite. These deposits can create a dull or cloudy appearance, but they can be removed with specialized cleaning products and techniques.


The myth of water affecting the color of granite is not entirely true. While water won’t change the color of granite, it’s important to be mindful of the minerals in water that can leave behind deposits. Regular cleaning and maintenance can help keep granite looking its best for years to come.

So, if you’re considering using granite in your home, don’t let the myth of water affecting its color deter you from making the choice. Granite is an excellent choice for various applications and is resistant to staining and discoloration.

Water can cause discoloration in granite, especially if it is left to sit on the surface for an extended period. However, with proper maintenance, such as regular sealing and wiping off any spills or standing water, discoloration can be prevented. If you do notice any discoloration, it is best to seek the advice of a professional to properly clean and restore the granite. By taking the necessary precautions and care, you can ensure that your granite surfaces remain beautiful and durable for years to come.

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