Hard water stains on a granite outdoor table can be unsightly, but they don’t have to be permanent. Here’s how to restore your table’s natural beauty safely and effectively.

1. Identify the Stain: Hard water stains appear as white or cloudy spots caused by mineral deposits. Confirm it’s not etching (surface damage) before treating.

2. Gentle Cleaning Solution: Mix equal parts water and isopropyl alcohol or use a pH-neutral stone cleaner. Avoid vinegar or acidic solutions, as they can damage granite.

3. Scrubbing Technique: Apply the solution to the stain and gently scrub with a soft microfiber cloth or non-abrasive sponge. Rinse thoroughly with clean water afterward.

4. Baking Soda Paste for Tough Stains: For stubborn stains, make a paste of baking soda and water. Apply, let it sit for 10–15 minutes, then scrub lightly and rinse.

5. Prevent Future Stains: Dry the table after rain or spills, and consider sealing the granite annually to protect against mineral buildup.

By following these steps, your granite outdoor table will stay stain-free and look its best for years. Always test cleaners on a small area first to ensure compatibility.