The Principles of Cheesemaking

Milk is the starting point for cheesemaking andreaches the right level, rennet is added to the
using fresh, pure milk is critical. Unpasteurized milkmixture.  Rennet helps the starter culture to
is widely believed to produce the best tastingcreate the curds.  Basically, it’s the "curdling"
cheeses.  The pasteurization process, whichof the milk.  Next, the curds are processed
involves heating the milk to kill germs, candepending on the desired final product.  Some
sometimes affect the delicate enzymes in thecheeses such as cheddar are pressed into a
milk.  Pasteurization may inhibit the formation ofmold.  Others are salted and aged.  Cheeses like
cheese curds and affect the taste of the finalSwiss require additional cooking of the curds.  
product.   Unpasteurized milk can be purchasedSome only require salting.   Fresh cheeses such
from family farms that raise goats, sheep oras ricotta can be eaten at this time as they are
cows.  If that isn‘t feasible, any type of not aged.  
whole, 2% or skim milk may be used.Aging and ripening yields a firmer cheese.  Time,
In cheese making, caseins (also known as milktemperature, humidity, bacteria and salt all affect
proteins) are transformed by a starter culturethe ripening process.  At this point, molds may
into curds, forming the basis of cheese.  In thisdevelop which also contribute to the flavor of the
process, the lactose in milk is changed to lacticcheese. 
acid.   This can be loosely compared toAs you can see, milk, the choice of starter
functioning of yeast in beer making.   Severalcultures, rennet and the concentration and aging
types of starters are used in cheese making andprocesses all help determine the finished cheese. 
are chosen based on the type of cheese.   ForWhile creating a good cheese is a series of trial
example, some are better for making mozzarella,and error, they are many general concepts that
others for feta or camembert. Starter cultureswill help you get started. Your patience and
help shape the taste, feel and scent of theattention to detail will be rewarded with delicious
finished cheese.homemade cheeses to share with family and
At the next step in the process, when the pHfriends.