How to clean grout?

For regular maintenance, I mop liberally with this solution:

1 cup white cleaning vinegar

1 cup baking soda

1 Tbsp blue Dawn

2 gallons hot water (I boil a large pot and hottest tap water for the balance)

If a stubborn stain, Mr. Clean Magic Eraser + Lysol Toilet Bowl Cleaner in the black squirt bottle.

Once you get it clean, check to see if it needs to be re-sealed. If so, then sealing will help to prevent future stains.

First, wipe down the grout with hot water to remove surface dirt and grime. Next, spray a cleaning solution on the grout. You can mix your own by putting a 50-50 mix of vinegar and water into a spray bottle. Spray on the grout, let stand for five minutes and then scrub with a soft brush.

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.