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How cheese is made?

DATE:02/04/2020

There are six important steps in cheesemaking: acidification, coagulation, separating curds and whey, salting, shaping, and ripening. While the recipes for all cheeses vary, these steps outline the basic process of turning milk into cheese and are also used to make cheese at home.


Acidification
The first step to making cheese is acidification. During this stage, a starter culture is added to milk that will change lactose (milk sugar) into lactic acid. This changes the acidity level of the milk and begins the process of turning milk from a liquid into a solid.

Coagulation
Coagulation is the process of transforming the liquid into a semisolid. When making cheese, an enzyme called rennet is added either as a liquid or paste to further encourage the milk to solidify.


Curds and Whey
As the milk solidifies, it forms curd and whey. The curds are the solid part and whey is the liquid. In this step, the curds are cut using a knife or a tool that resembles a rake.

Cutting the curds further encourages them to expel whey. Generally, the smaller the curds are cut, the harder the resulting cheese will be. Soft cheeses like Camembert or Brie are hardly cut at all. Harder cheeses like cheddar and Gruyere are cut into a very fine texture. For these harder cheeses, the curds are further manipulated by cheddaring and/or cooking. Cooking the curd changes its texture, making it tender rather than crumbly.

When this process is complete, the whey is drained away, leaving the curd alone to become cheese.

Salting
Salt is added for flavor. It also acts as a preservative so the cheese does not spoil during the long months or years it spends aging and it helps to form a natural rind on the cheese.

There are several ways to use salt. Salt can be added directly into the curd as the cheese is being made. The outside of the wheel of cheese can be rubbed with salt or with a damp cloth that has been soaked in brine (heavily salted water). The cheese can also be bathed directly in a vat of brine, as it is for mozzarella.

Shaping
In this stage, each type of cheese takes its familiar form as a solid block or wheel. The cheese is put into a basket or a mold to form it into a specific shape. At the same time, the cheese is also pressed with weights or a machine to expel any remaining liquid.

Ripening
Referred to as affinage, this process ages cheese until it reaches optimal ripeness. During this time, the temperature and humidity of the cave or room where the cheese ages are closely monitored.

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