There are many sources of enzymes, ranging from plants, fungi, and microbial sources, that can substitute for animal rennet.

FPC contains only chymosin B, achieving a high degree of purity compared with animal rennet.

Caerphilly is traditionally made from unpasteurised milk and animal rennet, and matured for just a couple of months before being sold.

Glechoma has been used in the cheese-making process as a substitute for animal rennet.

People who want to avoid cheese made with animal rennet for moral or religious reasons have to read labels carefully to be sure.

Until November 2012, they were not made suitable for vegetarians, as they contained whey, which is produced using animal rennet.

All are suitable for lacto-vegetarians, as they do not use animal rennet.

Doritos made for the US market generally do not use pork derived animal rennet in the making of the cheese flavorings used on the chips.

The milk is coagulated by animal rennet when the milk is 30-35 C (86-95 F) and for a period not less than 30 minutes.

The cheese is suitable for vegetarians as it is made without using animal rennet.