Zep Home Pro Foaming Miracle Grout Cleaner & Protectant - 32 Fl. OZ - (Pack of 1) 2-in-1 for Sparkling Clean Grout Lines

Left the product to soak for two minutes then grabbed a grout cleaner brush and I am so happy with the results. It was minimal effort to scrub the dirt off. Will buy again. See before and after photos for yourself!

This stuff cleaned the gunk that I couldn't see. I clean my shower weekly but kept noticing a weird slimy feel on the grout. I used this stuff yesterday, let it sit for a few minutes and then used my scrub daddy sponge. When I rinsed it clean clumps of gunk (not grout) was rinsing down. I can only imagine what it was, some kind of mold most likely. I have dark gray grout. I am ordering another bottle for the downstairs bathroom.

Worked well in removing the majority of our moldy shower grout. It failed in removing the deeper grout discoloration but a second attempt should yield better results. The product did not harm the porcelain tub it dripped onto during the process. I'll use it on a more regular basis in keeping grout mold at bay.

The sprayer would not work, so I had to pour product on the grout lines. It was supposed to foam, but didn’t. I let it stay on grout lines for 15-30 minutes, and when I used the grout brush……the grout lines were perfectly white as new! I loved the product, the sprayer needs to be improved, as I used a whole bottle, due to pouring it on the floor, but it works great!

Amazing. So affordable and makes a huge difference! The smell is not overwhelming and does not leave a residue. I did a regular water mop after wiping. So happy. We are renters and I was so tired of seeing the obvious mismatches grout from clean vs dirty in the high traffic areas! Just spray, wait a few minutes, lightly scrub and you are good to go. So simple!

My entire Florida home is porcelain tile. After tenants for 5 years, we're moving in. The grout is very soiled everywhere. It makes me wonder how often they washed the floor! I had visions of just spraying this grout cleaner on, letting it set, and wiping the soil away. If only ! LOL! Wiping it with a sponge did nothing. I had to scrub with a grout brush for a few minutes per grout line and the soil gave way. THEN I could sponge it up and the grout looks like new. I don't think I could physically manage cleaning a 4BR 2bath house like this though. I'd be at it for days and my arm would be very sore. I think I'll have to hire a professional.

This stuff is amazing!!! Works so quickly and no scrubbing required.

I have no idea how this product got any decent reviews. I followed the instructions to the letter and could hardly tell any difference at all! I won’t ever buy this product again. You spray it on and allow it to set 2-3 minutes which I did but it was a waste of money. It didn’t clean the grout. I scrubbed with a thin brush then wiped it off.