Naturser is a cheese producer based in Spain, specifically in the region of Extremadura. The company is known for producing Torta del Casar, a traditional Spanish cheese made from sheep's milk.

This cheese is characterized by its creamy texture and strong, slightly bitter flavor. Arteserena utilizes traditional cheese-making methods, adhering to strict Protected Designation of Origin (PDO) guidelines to ensure the authenticity and quality of their products.