CASEUS - Serpa Cheese DOP Caseus, ACE. Is a comercial company that represents three of the major producers of serpa cheese, exclusively, in the international markets. It counts with the expertise, the reliability, dynamism and quality that seize the scale, resources and professionalism to full satisfaction of the international customer’s needs. CASEUS - SERPA CHEESE PDO Serpa cheese is probably the most famous traditional cheese in the Alentejo. It’s unique strong aroma and spicy taste is a fundamental side of the cultural patrimony of the people of baixo alentejo.