Last year, one of Serra da Estrela’s oldest producers of olive oil, Casa Agrícola Francisco Esteves, located in the town of Manteigas, launched a kosher label in time for Hanukkah, the holiday ...

The "kosher" label applies to foods that comply with the set of Jewish Dietary Laws laid out in the Torah, which forbid, for instance, consuming pork or shellfish or mixing meat and dairy.