I first tried this cleaner on a rust spot that I couldn’t completely get off my quartz countertop and it came off no problem. Then I used it on a pair of stained sneakers and it made them look brand new again. And that’s when I decided to use it on my white tile and grout that I can never get clean. I was AMAZED because now it looks brand new again and I have tried so many products on my white grout and nothing worked liked this! Order yours and thank me later 🙌🏽!