Black Diamond Ultimate Grout Cleaner: Best Cleaner for Tile,Ceramic,Porcelain, Marble Acid-Free Safe Deep Cleaner & Stain Remover for Even The Dirtiest Grout. (1-Quart/1-Brush)

I saw this advertised and decided to check it out. Just spray, let sit a few minutes and scrub with the brush. It works in seconds. Its so easy to use. Just spray on the grout, wait a couple minutes and scrub. Years of stain came off. It has a pleasant smell. The mist spray makes it go where you want it. I no longer dread cleaning the grout.

This works so good! Made my grout bright white and before it was a dull brown color! I used a tall grout brush which I bought separately and it made it a breeze to clean the grout!

This grout cleaner is genuinely effective — it lifted years of dirt and grime that other cleaners barely touched! The quality of the cleaner itself is impressive, and the included brush makes it easier to get into tight grout lines. It’s definitely a powerful cleaner that delivers results without damaging tile. That said, the bottle design could be better. Mine had a bit of leakage during shipping, and the solution is slightly sticky when it dries if not fully wiped up. The smell is noticeable but not overwhelming — more “cleaning chemical” than fresh scent. The bottle and spray nozzle feel durable, though, and it should last a while. Overall, a great product for deep cleaning grout — just be mindful of the slight mess factor!

All I can say is this product works! I started in our bathroom that has white tiles that are small. My husband said wow I can see the difference right away. I used a different long brush that I use when cleaning however; this is an amazing product. I can’t wait to see the rest of my home shine!

This treatment really works and I m glad that I found it here. I have tried other brands, but no success. The cost is reasonable and I like the brush that comes with the cleaner. I will recommend it to my friends and will buy it again for sure.

Get the one with the stiff bristle brush. It’s literally as easy as spaying on and using the brush to loosen the dirt and it brings you grout back to pretty much new! You don’t need gloves or glasses as it doesn’t have acid. I wish I knew about this sooner!! I have labored for hours cleaning grout and now it takes a 10th the time and looks better than any other product I’ve ever used!! Super easy clean up too!

I did not find success with this stain removal. Looked good for a day or two and then look exactly the same prior to trying cleaner. Would not recommend.

I had high hopes for Blue Diamond Grout Cleaner, mainly because it doesn’t have the overpowering smell that most grout cleaners do—that’s definitely a plus. Unfortunately, it didn’t perform the way I expected. I applied a generous amount to my ceramic tile and let it sit much longer than recommended (2–3 hours instead of a few minutes), and even repeated the process. Despite a lot of scrubbing, I only saw a very slight improvement. I even tried adding Dawn dish detergent to boost the cleaning power, which helped a little more, but still not enough to make a real difference. Overall, it performs about the same as many other products that claim to be “the best.” I wasn’t impressed. Put It to the Test (Even With Steam)—Still Falls Short

Buenísimo para limpiar las juntas de los azulejos o pisos de cerámica Me parece caro pero es muy bueno

No funcionó en mi cocina, Apliqué, deje actuar por 5min y utilice el cepillo Cepille bastante tiempo y solo cambio muy muy poco. No lo recomiendo por el precio puedes encontrar algo mucho más barato que limpie mejor

I have tried a lot of grout cleaners. Truthfully this is the most effective one I have found. You won't be disappointed. Albeit you are still on your hands and knees with a scrubbing brush, but you can actually see the dirt start to bubble up. You will need to wipe down each area where you apply the cleaner, but I would suggest that if you have a floor steamer, use this rather than just washing the floor with your usual cleaner.

It is so easy to use. You spray it on and 2 to 5 minutes later, scrub it with scrub brush, then rinse it. Good as new.

It's expensive and doesn't work as expected.