The Oleotest® is a reliable, fast and cheap method to control the food oils quality. These tests allow in a few minutes and in q extremely simple way, the reliable evaluation of food oils according to the presence and quantity of polar compounds (extremely harmful to the Human health). The reliability of this test is continuously confirmed through independent laboratories analyses. This test is regularly used by official entities (as many of the European Food Safety Agencies) in inspection actions, because they remain unchanged after use, which allows them to use it as legal evidence. The OleoTest® tests are an important complement in the systems of auto-control of the food branch companies (Obliged by law, according to REg. CE 852/2004).