How is Cheese Made? (2024)

From cow to curd, there are many steps along the way to make the cheeses we all know and love.

What is cheese made of? It all starts with collecting milk from dairy farms. Once it’s brought to the cheese plant, the cheesemakers check the milk and take samples to make sure it passes quality and purity tests.

Once it passes, the milk goes through a filter and is then standardized – that is, they may add in more fat, cream or protein. This is important because cheesemakers need to start with the same base milk in order to make a consistent cheese. After the milk is standardized, it’s pasteurized. Pasteurization is necessary because raw milk can harbor dangerous bacteria, and pasteurization kills those bacteria.

At this point, good bacteria or “starter cultures” are added to the milk. The starter cultures ferment the lactose, milk’s natural sugar, into lactic acid. This process helps determine the cheese’s flavor and texture. Different types of cultures are used to create different types of cheese. For example, Swiss cheese uses one type of culture, while Brie and Blue use others. After the starter culture, a few other ingredients are added including rennet and, depending on the type of cheese, color -- which is why Cheddar is orange.

Rennet causes the milk to gel similar to yogurt, before the curds (the solids) separate from the whey (the liquid). The amount of rennet and time needed for it to separate into curds can vary from cheese to cheese.

Once it starts to gel, the cheesemakers cut it, which allows the whey to come out. Drier cheeses are often cut more to form smaller curds, so more of the moisture comes out, while curds cut less are larger and are moister. Once the curds are cut, they’re stirred and heated to release even more whey. At this point, the curd is separated from the whey, and it’s time to start making the cheese look more like cheese! Depending on the type of cheese, this can happen one of two ways:

  • The curd is salted, and then it’s pressed in a form. This is the case for Cheddar and Colby cheeses.
  • The curd is pressed into a hoop, which is brined. This occurs with mozzarella and Swiss cheeses.

While the cheese is pressed, more whey comes out, so it eventually becomes the shape and consistency of cheeses we know.

Once the cheese is shaped, it may be aged for a while before its ready to eat.

Want to see it in action? We sent a team to Fiscalini Farms in Modesto, California, to learn more about how they make their award-winning cheeses.

According to dairy farmer Brian Fiscalini, world-class cheese comes from stellar milk. From there, the cheese travels to the cheese plant and the magic begins. To learn more about the cheese making process, watch this video:

How is Cheese Made? (2024)

FAQs

How is Cheese Made? ›

Curdling the milk: Add rennet to cause a reaction that curdles the milk, creating curds. Cutting the curd: Next, the cheesemaker slices the curd with knives and heats it to separate the curds and whey. Processing the curd: Cheesemakers stir, cook and wash the curd to acidify and dry them.

How is cheese made step by step? ›

The fermentation of milk into finished cheese requires several essential steps: preparing and inoculating the milk with lactic-acid-producing bacteria, curdling the milk, cutting the curd, shrinking the curd (by cooking), draining or dipping the whey, salting, pressing, and ripening.

How is cheese actually made? ›

During production, milk is usually acidified and either the enzymes of rennet or bacterial enzymes with similar activity are added to cause the casein to coagulate. The solid curds are then separated from the liquid whey and pressed into finished cheese.

What are the ingredients in cheese? ›

To sum up, cheese is made with four basic cheese ingredients: milk, starter culture, coagulant, and salt. How these ingredients are combined determines how strong or mild the flavor will be.

How was cheese made in the old days? ›

Domestication of Milk Producing Animals

Cheese may have been discovered accidentally by the practice of storing milk in containers made from the stomachs of animals. Rennet, an enzyme found in a stomach of ruminant animals, would cause the milk to coagulate, separating into curds and whey.

Why is cheese easier to digest than milk? ›

Cheese may be better tolerated than milk in some people because it is lower in lactose, a type of sugar that is not easily digested if people lack the enzyme to break it down.

Is cheese unhealthy for you? ›

REALITY. You don't have to cut cheese out of your diet, but if you have high cholesterol or blood pressure, use high-fat cheeses sparingly. A 30g portion of cheese provides seven per cent of your daily calories and there can be more salt in a portion of cheddar than in a packet of crisps.

What part of the animal is used to make cheese? ›

Traditionally, the enzymes in rennet have been taken from the stomach linings of young ruminant animals like calves, lambs, and kids (young goats). This type of animal rennet has been used in the cheesemaking process for thousands of years.

Is American cheese real cheese? ›

According to the FDA, American cheese is not real cheese. The organization refers to American cheese as a “pasteurized process cheese,” which means that it only needs to have a minimum of 51% real cheese and can be combined with other ingredients including milk, skim milk, buttermilk, cream and whey proteins.

Can cheese expire? ›

Unopened, they typically last for a few weeks to a couple of months past their 'best by' date when refrigerated. Fresh cheeses like cream cheese, ricotta and cottage cheese are highly perishable and usually last only a few weeks past their 'best by' date when stored in the refrigerator.

Is butter made out of milk? ›

What is butter made of? Usually butter is made from cow's milk, though goats, sheep and even yaks and buffaloes are used in some parts of the world. However, not all milk-producing animals can join the butter party – which is why you'll never get butter made from a camel.

Why is milk heated before making cheese? ›

Milk heating at temperature above 75 °C causes the denaturation of whey proteins (WPs) and promotes protein and moisture retention into cheese curd, resulting in higher cheese yield (Singh & Waungana, 2001).

What is the healthiest cheeses to eat? ›

Here are 10 kinds of cheese that are on the healthier side.
  1. Part-skim mozzarella cheese. Part-skim mozzarella is lower in saturated fat than many other cheeses. ...
  2. Feta cheese. Feta cheese is a great salad-addition. ...
  3. Low fat cottage cheese. ...
  4. Goat cheese. ...
  5. Ricotta cheese. ...
  6. Swiss cheese. ...
  7. Cheddar cheese. ...
  8. Gouda cheese.
Sep 3, 2021

Why does Swiss cheese have holes? ›

Carbon dioxide given off by the bacteria used to make Swiss cheese creates the air bubbles in the process, resulting in those holes that we refer to in the industry as “eyes.” The size of the eyes does not have an effect on the taste of the cheese and can be controlled through temperature, storage time and acidity ...

What technically is cheese? ›

Cheese is a fermented food product with a very long history of manufacture and safe consumption. Key to the safety of cheese is the quality and safety of the cheese milk raw material, together with carefully controlled and monitored processing steps during the transformation of the milk into various cheeses.

What is rennet made of? ›

Animal rennet is derived from the stomach of a calf, lamb or goat while their diets are still limited to milk, this is typically 90% pure chymosin. Vegetable rennet is made from a type of mold (Mucur Miehei). However, even though it is derived from mold, there is no mold contained in the final product.

Is cheese made from milk yes or no? ›

Most homemade cheese is made from milk, bacteria and rennet. Cheese can be made from almost any kind of milk including cow, goat, sheep, skim, whole, raw, pasteurized and powdered.

How long should the milk be heated to make cheese? ›

Heat milk to 176°F (80°C) for 20 minutes. Add the vinegar (5% acidity) to the distilled water, then slowly add the vinegar/water mixture to the hot milk until the whey is semi-clear and the curd particles begin to mat together and become slightly stretchy.

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