Cheese of Islam and Judaism must avoid cheeses made with rennet from animals not slaughtered in a manner adhering to halal or kosher laws. Both faiths allow cheese made with vegetable-based rennet or with rennet made from animals that were processed in a halal or kosher manner. Many less orthodox Jews also believe that rennet undergoes enough processing to change its nature entirely and do not consider it to ever violate kosher law. (See "Cheese and kashrut".) As cheese is a dairy food, under kosher rules it cannot be eaten in the same meal with any meat. Rennet derived from animal
Casín cheese It should have no cavities within the cheese but may have tiny cracks running through the body of the cheese. Casín cheese has a smooth, thin rind. It is a yellowy, cream colour, sometimes with whitish patches. It should be clean and dry but slightly greasy. On the surface will be decorations in the form of flowers, plants or geometric figures and the symbol or name of the manufacturer. Spanish cheeses Casín cheese Casín cheese ()is a Spanish cheese made in the Principality of Asturias. Its name is covered by a protected designation of origin (PDO). It is made from