Outdoor tables are prone to unsightly base stains caused by dirt, spills, or weather exposure. Fortunately, removing these stains is easier than you think. Start by mixing warm water with mild dish soap and scrubbing the affected area with a soft brush. For tougher stains, create a paste using baking soda and water, apply it to the stain, and let it sit for 15 minutes before rinsing. Vinegar diluted with water also works well for mineral deposits. Always rinse thoroughly and dry the table afterward to prevent new stains. Regular maintenance, like wiping the table after use, can keep it looking pristine.