To remove water stains from your stovetop, use vinegar, which dissolves mineral deposits. Soak paper towels in warm or hot vinegar, place them on the stains for 30 minutes, then wipe with a dry cloth. For tougher stains, combine baking soda with vinegar or lemon juice. Alternatively, use baking soda and half a lemon as a cleaning sponge. These natural methods effectively eliminate water stains from your stovetop.