I have something to admit-- My husband and I moved into our house about one year ago. I thought that the grout in our kitchen was gray... Little did I know it was just FILTHY! I spent about one week completely cleaning the entire kitchen, hallway and bathroom floor. I originally used Tilex and a Mr. Clean Magic Eraser. It was SO expensive. I also was concerned about Tinkerbell who seems to lick the floor even when we try to train her not to. So I turned to the homemade method.
1/2 Cup Vinegar
1 Cup Baking Soda
Mix it together to form a paste
Place the paste on the grout and wait about five minutes.
Use a stiff bristle brush. and scrub.
It cleans the grout perfectly! Although it takes a little elbow grease to get your floor to sparkle it worked very well and the best part is it is NON TOXIC.
Tilex 32 oz $4.49 Walmart $1.12 per cup
The numbers speak for themselves!