My dining room and kitchen are the worst! So many spills and stains. I’ve tried just about everything to clean the grout. I got a high dollar cleaner you spitz on from the tile store. That was awful took for-ever and was expensive! The detergent in it just drew the dirt to it more quickly too. Bleach really does work great but it gives me a headache and the floor was so slippery afterward.
Believe it or not I like to use Scrubbing bubbles bathroom cleaner. It’s easy to spray on there and works great.I let it sit for a minute then scrub with a tooth brush and wipe it away with a towel. I make sure I use it before I mop in case it leaves any extra residue. Another tip is I I always use vinegar and water to mop.
If you don’t want to use harsh chemicals you can use baking soda or borax. Dampened it with a little water. I still scrub it with a toothbrush. It works really good but the scrubbing bubbles is faster for me. Yes, you can call me impatient.
I do this every Spring and Fall, or as needed. Wish me luck. I have 2 rooms finished and have 3 more to go....
Please share what you use on your tile floors!