How to Clean grout?

https://www.hometalk.com/categories/cleaning/household/grout

Hi Sandy. I have found the best way to clean grout is to mix water with simple green and then scrub the grout lines. I then wipe up the excess and go over the whole floor with a steam mop. If you don't have a steam mop just use a regular one.

http://www.diynetwork.com/how-to/maintenance-and-repair/cleaning/how-to-clean-grout

https://www.rejuvenateproducts.com/grout-cleaner

thank you

Cleaning Grout with Hydrogen Peroxide, Baking Soda, and Dish Soap

1. Make a paste.
2. Apply the paste with a toothbrush.
3. Let the mixture sit on the grout for 15 minutes.
4. Rinse the grout with warm or hot water to remove all of the solution.
5. Use a rag to wipe the grout to remove any leftover residue or dirt.

Mop the floor with clean water.

OR

Making a paste with OxyClean and water. Apply let sit for 20 mins. Scrub with toothbrush. Rinse well.

Once it's clean, SEAL!

This is how I do it: How to Clean Grout

1. Remove surface dirt with hot water and a towel.
2. Mix together ½ cup baking soda, ¼ cup hydrogen peroxide, 1 tsp dish soap.
3. Spoon cleaning agents onto grout and let sit for 5-10 minutes.
4. Scrub the grout lines with a brush. ...
5. Wipe clean.