2. Add a bottle of flour and two bottles of white vinegar to the bottle.
3. Add three caps of alcohol into the bottle, then shake the liquid inside, and spray this cleaning liquid on the tile for cleaning.
4. Wash with white vinegar and baking soda powder, spray white vinegar on the joints of ceramic tiles, and then apply edible baking soda powder. After the foam disappears, wipe it off with a rag and the dirt will disappear immediately.