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
Lighvan cheese Lighvan cheese Lighvan () is a brined curd cheese traditionally made in Iran. Having a sour flavor, and a shape covered by holes, the cheese is produced from sheep’s milk. The name comes from Liqvan, a village in East Azerbaijan, where it has traditionally been made. The milk is coagulated with rennet tablets, then the curd is packed into triangular cloth bags and is allowed to drain thoroughly. The triangular blocks of cheese, which are about thick, are removed from the bag and put in an earthenware pot. Then they are covered with salt, and are left for two days.