Kosher Parmigiano Reggiano is produced by the Bertinelli farm (www.bertinelli.it), located in the cheese's certified production area in the areas surrounding Parma, Italy. This PDO (Protected Designation of Origin) Parmigiano Reggiano conforms to kashrut, the Jewish law on food based on the interpretation of the Torah. Bertinelli PDO Parmigiano Reggiano received kosher certification from OK Kosher Certification.
The first wheel of Bertinelli's Kosher Parmigiano Reggiano was opened in October 2015, at EXPO, the world's fair based in Milan, Italy, at the Israel Pavilion. All the phases of the production process of the cheese, starting from the breeding of the cows to the ageing of the cheese in the dairy farm, take place under strict Rabbinic supervision while still maintaining all traditional aspects of the cheese while all the plants and technical structures have been sanitized to match the kashrut.