Mix the Solution

Combine water, baking soda, lemon juice, and vinegar in a large bowl.

Pour the mixture into a spray bottle for easy application.

Apply to Grout

Spray the solution generously onto grout lines.

Let it sit for 1–2 minutes to allow the natural acids and baking soda to break down dirt and stains.

Scrub

Use a stiff brush or an old toothbrush to scrub the grout lines.

Focus on areas with stubborn stains or discoloration.

Rinse and Dry

Wipe away the residue with a damp cloth or mop.

Allow the area to air dry or dry with a clean towel.

Tips for Best Results

For extremely dirty grout, let the mixture sit a bit longer (up to 10 minutes) before scrubbing.

Regular cleaning prevents build-up and keeps grout looking fresh.

Test a small area first to ensure the acidity doesn’t affect colored grout.

This method is eco-friendly, inexpensive, and works great for kitchens, bathrooms, and tiled floors.