Sunflower oil is made by pressing the seed of the sunflower. Refined sunflower oil is typically used in packaged goods and is refined through several steps to extract the oil from the sunflower seeds and remove any impurities. First, the sunflower seeds are cleaned, de-hulled, and ground into a paste. The paste is then heated and pressed to extract the oil. The oil is then treated with a chemical solvent to remove any remaining impurities and filtered to remove any solids. The final step involves heating the oil to a high temperature to remove any remaining solvent and further purify the oil. The most commonly used form of sunflower oil on the market is the high-oleic kind, which means it contains around 80% oleic acid, which is similar to the amount of monounsaturated fat found in olive oil. The high-oleic form is a more heat-stable cooking oil because it contains less polyunsaturated fats.