Stain removal is the process of eliminating unwanted marks or discolorations from various surfaces, such as fabrics, carpets, and hard surfaces. Common stains include those from food, beverages, ink, and grease. Different types of stains require specific cleaning methods and products, often involving detergents, solvents, or natural solutions like vinegar and baking soda. Effective stain removal typically involves acting quickly to prevent the stain from setting. Techniques may include blotting the stain with a clean cloth, applying a stain remover, and rinsing with water. Understanding the nature of the stain and the material affected is crucial for successful removal without causing damage.