After spraying the unclean tile joints with the baking soda and white vinegar combination, wait 24 hours for the product to work.
Use a toothbrush or sponge to scrub your joints, then wash them with water. After that, you may enjoy the outcome!
Interesting fact: if you have tile joints that are very visible, such in a bathroom or kitchen, you may coat them with a varnish to keep them clean and dry.