Mildew stains on a concrete outdoor table can be unsightly and stubborn, but with the right approach, you can restore its clean appearance. Here’s a step-by-step guide to effectively remove mildew:

1. Prepare the Surface: Start by brushing off loose dirt and debris with a stiff-bristle brush. This ensures the cleaning solution can penetrate the mildew.

2. Create a Cleaning Solution: Mix equal parts white vinegar and water in a spray bottle. For tougher stains, add a tablespoon of baking soda to create a paste. Alternatively, use a bleach solution (1 cup bleach to 1 gallon of water) for severe mildew.

3. Apply the Solution: Spray or scrub the mixture onto the stained areas. Let it sit for 10-15 minutes to break down the mildew.

4. Scrub and Rinse: Use a brush or sponge to scrub the stains, then rinse thoroughly with a hose or pressure washer on a low setting.

5. Prevent Future Growth: To keep mildew at bay, apply a concrete sealer and store the table in a dry place when not in use.

For persistent stains, repeat the process or consider commercial concrete cleaners. Regular maintenance will keep your outdoor table looking fresh and mildew-free!