I use vinegar water ration 1:10. Lightly scrub with a deck brush and then give it a warm water rinse. https://chascrazycreations.com/natural-cleaning-with-vinegar/
I have tried many things , but ZEP grout cleaner & brightner works fantastically. I got it at Walmart.
Here is what I use: https://www.craftylittlegnome.com/the-best-homemade-grout-cleaner/
Hello, Heres some recommended grout cleaning methods
The Best Way to Clean Grout-EVER!!! | Hometalk
Painted Tile Grout Refresh with grout pen
Finally-Here’s a Hometalk replacement link for you to consider. Hope this helps
Hi Ellen - This is the shower cleaner that we use to help keep grout and tiles clean and minimize the mildew - it works on kitchen grout too. I've also included a great article about mold if it's gone that far. Hope this helps! Hugs, Holly
PS - We have a FREE eBook with recipes for all of my homemade and all-natural cleaners. You can download it here --> https://pinkfortitude.com/thank#GreenClean
To get your grout white again make a paste with peroxide and baking soda. Scrub it into the grout and leave it. Then rinse it and it will be white.
This product works well for both tile and grout: https://amzn.to/34yOt0E
Hope this Helps! Jeremy - https://do-daddy.com