Refined oil is a type of oil that has undergone processing to remove impurities, odors, and flavors. This process typically involves methods like bleaching, deodorizing, and filtering, which enhance the oil's clarity and stability. Common examples of refined oils include canola oil, sunflower oil, and soybean oil, which are widely used in cooking and food preparation. The refining process improves the oil's shelf life and makes it suitable for high-temperature cooking. However, it can also strip away some of the natural nutrients and flavors found in unrefined oils. As a result, many people choose between refined and unrefined oils based on their cooking needs and health preferences.