What is the best thing to use to clean floor grout?

I mop with 1 cup baking soda, 1 cup white cleaning vinegar, 1 Tbsp blue Dawn, 2 gallons HOT water (I boil part of it). If you have stubborn stains, Lysol Toilet bowl cleaner in the black squirt bottle and magic eraser are great.

I used Barkeepers friend and a brush. I had pretty good luck with that. Having said that I will never put in white grout again.

Mix two parts peroxide and one part dish soap (many recommend blue Dawn, but most soaps should work fine), and use it to clean the grout.

Hi Claudine, You can make a thin paste of hydrogen peroxide and baking soda. Apply it to the grout and let it sit for about 10-15 minutes. Scrub with an old toothbrush and rinse clean. If the grout between the tiles has worn down too far, it may be a better idea to first re-grout and then seal. You can also buy grout pens to quickly “recolor” your grout and make them look new again.

Here are several tips and tricks that might help you https://chascrazycreations.com/floor-cleaning-hacks/