Do all cheeses contain animal rennet?

Here's the breakdown:

* Animal rennet is an enzyme extracted from the stomach lining of calves. It's traditionally used in cheesemaking to coagulate milk proteins and separate the curds from the whey.

* Microbial rennet is a vegetarian alternative made from genetically engineered microorganisms. It provides the same enzymatic function as animal rennet.

* Plant-based rennet is another option derived from plants like figs or thistle. While less common, it can be used to coagulate milk.

Therefore, when choosing cheese, you can find varieties made with:

* Animal rennet: Often labeled as "traditional" or "made with animal rennet."

* Microbial rennet: Usually labeled as "vegetarian rennet" or "microbial rennet."

* Plant-based rennet: May be labeled as "plant-based rennet" or may not have specific labeling.

Always check the cheese label to determine the type of rennet used.