Upholstery Carpet Stain Remove ~ 1 tbsp Dish Soap (I used the regular Dawn), 1 tbsp White Vinegar, 2 cups Hot Water, Baking Soda. Sprinkle baking soda on the stain and wait 10 minutes. Then vacuum it up. Mix the dish soap, vinegar, and water together. With a clean cloth, start dabbing the stain remover on the stain. Keep blotting until it’s completely gone.