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)

I used this today in my filthy kitchen tile floor grout. It has years of built up grime. The floor is mopped on a weekly basis, but I cannot remember the last time. The grout had been properly cleaned.I sprayed the product on in sections and let it sit on there for five minutes. I then use the Rubbermaid grout scrubbing brush first and then I used an angled brush that I purchased separately for grout and scrubbed it very well wiped it all down mopped and then used a grout sealer and the results were amazing. Does take some manual labor to do, but it works excellent. Highly recommend there was not a strong odor and I used non-latex Mr. clean rubber gloves and had no issues.

Works like Magic!!! Easy to scrub grout clean quickly and leaves grout looking like new!

Good product! Brush that came with it was helpful. Product does not smell strong. It’s able to clean well and give floor tiles a fresher look!

Doesn't clean the grout any better than other cleaners. I won't be reordering. Still looking for a white grout cleaner that works.

So I am the big dummy that thought white grout in my kitchen would be amazing. Yes it is well sealed and repeatedly sealed. What is truly amazing is how quickly it becomes filthy looking and how impossible it is to keep it looking even beige. Ew. Was seriously considering digging it all out and going with a color that was supposed to look grungy. not happy about that. My routine consisted of sweeping, vacuuming, mopping, then using a scrub brush on the grout lines with the product of the hour, then mopping again and they certainly did not come out as white as it should have. Tiring and time consuming.I purchased this grout cleaner hoping maybe, but thinking, yeah right, more money down the drain.Hold onto your hats and glasses kids- This stuff works! The sprayer included made me happy, and the brush is next level, it fit the grout lines perfectly and it performed, the bristles are not too soft or too hard. I sprayed the Black Diamond intensive cleaner and waited the requisite few minutes, scrubbed and WOW, that grout was as white as the day it was installed and though yes I had to scrub I did not break a sweat, more like just getting the dirt up and off. Easy peasy. I have white grout again. White. and I love it again. Thank You Black Diamond for a product that not only WORKS but is also easy to use. Your products will always be on my shelf.

Left on for 3 minutes. Then scrubbed with the included brush. Then used a floor cleaner to pick up the stuff with clean water. Note the brush does scrub up some of the grout so don't go to crazy with it. Because I used a floor cleaner it wet the grout more. Had to wait an hour or so to really see how clean it was. Some came really clean and others were still lightly stained but clean.

Tried the Zep cleaner first - two applications and it didn’t touch most of the stains in my floor tile grout. This product went in to work immediately and removed ALL stains in my light gray grout which I suspect the contractor failed to seal properly. I did a second application just to get the grout extra clean before I seal it myself. Great product - highly recommend.

Purchased this to help clean light grey grout between white marble tile. It took more scrubbing than advertised but did do a good job. The brush in this kit is excellent. Used it and a couple scrubbing wheels on drill. it did bring the grout back to a nice light grey before sealing.