If you’ve recently installed quartz countertops in your kitchen or bathroom, then you’ll know that grouting is extremely important.
It’s what helps to provide that tight seal between the wall or backsplash it’s attached to.
However, when installing the grouting, it’s not uncommon for the grout to cause a stain or two on the quartz countertop, ruining its appearance.
Unfortunately, removing that stain can be much harder than it looks, but using an acidic cleaning solution such as phosphoric acid, the DIY mixture listed, or just a mix of vinegar and water should be able to help you get your countertops looking brand new again.
So, don’t panic, as we’re here to provide you with a comprehensive guide on how to rid your quartz countertop of any stains.
How To Clean Grout Off Quartz Countertop
Having grout stains on a countertop is a problem that many people deal with, and because of the adhesive properties of the grout, it means that it can be difficult to remove the stains without damaging the quartz itself.
Thankfully we’ve created this guide to help you clean your quartz countertops of any grout stains without damaging them.
These three cleaning solutions are all tried and tested, so you don’t need to be afraid of causing any damage to your countertops when using them.
The first method on our list for cleaning your countertops of any grout stains is to use Phosphorus acid, this is a type of chemical compound, and is often used in a range of strong chemical cleaners.
Thankfully, one of the things that it is best at is removing grout from quartz countertops, so you should have no issues with using it to help rid your countertops of any annoying stains.
You can also use it to help clean the dirt off your grout steams too, which makes it a convenient cleaner to have around the house.
No matter whether you buy a pre-made cleaning solution, or make your own by combining four parts water with one part phosphoric acid and adding it to a spray bottle, these instructions should help you to get rid of those stains.
- Step 1 – Try to wipe as much of the grout off of your countertops as possible using a damp cloth
- Step 2 – Make sure that you have safety goggles and gloves to wear when using the phosphorous acid, as it can be damaging to the eyes and skin
- Step 3 – Use a spray bottle to spray the areas affected by the grout staining, and allow it to sit for a couple of minutes. You should notice the stains beginning to foam slightly
- Step 4 – Use a brush to scrub the afflicted areas to help loosen any of the grout residue
- Step 5 – Use a damp cloth to wipe away any remaining grout residue, as well as any lingering phosphoric acid solution. Repeat steps 3 to 5 as much as necessary
- Step 6 – With the stains gone, using regular hot and soapy water to rinse and wash your countertop
When using phosphoric acid, always make sure that your skin and eyes are covered, and that you open up all of the windows in the room for ventilation too.
Once you’re done with your phosphoric acid solution, simply pour it down the sink and rinse afterward.
Another great way of removing any grout stains from your quartz countertops is to make your own grout remover, especially if you want to stay away from using harsh chemicals like phosphoric acid.
In order to make this remove, you will need:
- ½ cup of baking soda
- ¼ cup of vinegar
- ¼ cup of ammonia
- ¼ dish soap
- Microfiber cloth
- Bucket with fresh water
- Rubber gloves
- Eye protection
With all of this ready, you can then begin the process!
- Step 1 – Put on your gloves and eye protection, and in a spray bottle you’ll want to add the baking soda, ammonia, vinegar, and dish soap.
- Step 2 – Mix the solution together, and then begin to spray at the areas of your countertop with stains, before allowing the solution a minute or two to sink in. You should notice some bubbling and fizzing from the stains.
- Step 3 – Dampen your microfiber cloth and use it to scrub the grout stains you just sprayed
- Step 4 – Once done, use the clean water to rinse the area of any remaining grout stain residue, and to get rid of any lingering solution
You might need to repeat the process a couple of times if the stains are particularly tough, but we find it usually only takes one or two tries!
Finally, for those who would like to use a more natural solution, then vinegar itself is actually a great cleaning agent that works well on grout stains.
This is because vinegar is known to contain acetic acid. But it’s worth testing it on a small section of the countertop first, as it might cause damage depending on your countertop.
For this method, you will need:
- White vinegar
- Sponge or microfiber cloth
To clean the grout:
- Step 1 – Mix 4 parts water and 1 part vinegar in a spray bottle
- Step 2 – Spray the affected area with the solution and wait 15 minutes. This should break the grout residue down enough
- Step 3 – Use your cloth or sponge to scrub the sprayed area thoroughly
- Step 4 – Clean with fresh water and dry using paper towels.
You might have to repeat this process a few times, but it should hopefully do the trick!
We hope that this guide has been helpful in clearing the grout residue staining your quartz countertop, it might take some effort, but one of the three methods we listed should work. Good luck!