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Glam Journal

What causes cheese to get moldy?

Author

Andrew Henderson

Updated on April 01, 2026

What causes cheese to get moldy?

The flavor of cheese constantly evolves as it ages, even after you bring it home. Very cold temperatures will stall its flavor development, while too much heat or humidity will encourage bacterial growth, leading to mold.

How fast can mold grow on cheese?

semi-soft cheeses, like Mozzarella, Monterey Jack and Feta, for about 2 to 3 weeks. firm cheeses, like Cheddar, Colby and Swiss, for 5 weeks or more. hard cheeses, such as Parmesan, for up to 10 months. Also Know, why does some cheese mold faster than others?

Is cheese still good if it has mold on it?

Mold generally can’t penetrate far into hard and semisoft cheeses, such as cheddar, colby, Parmesan and Swiss. So you can cut away the moldy part and eat the rest of the cheese. Cut off at least 1 inch (2.5 centimeters) around and below the moldy spot. These molds are safe for healthy adults to eat.

How do you age cheese without it molding?

Wrap the cheese in paper towel instead. You are allowing the cheese to slowly dry at the surface (where the mold would normally begin due to the moisture build-up at that point), and are therefore preventing mold. Slice/cut/enjoy the cheese and re-wrap each time in paper towel.

Is mold on cheese bad?

Although molds are generally dangerous to eat, some types are used in cheesemaking to develop flavor and texture. These kinds are perfectly safe to consume. Mold is a fungus that’s characterized by fuzzy, off-color spores.

What should I do if my cheese is moldy?

Keep the cheeses out of the refrigerator to promote the mold growth. Place them in a container where they can breathe, such as a bowl covered with a loose lid or plastic wrap, and set it out of the sunlight. Every day or so, check the cheese for mold growth. You can even use a ruler to measure the height of the mold as it grows.

What kind of cheeses are good for mold growth?

Try purchasing several types of cheeses with different textures. For example, compare the hardness of Parmesan with a semisoft cheese like cheddar and a soft cheese like mozzarella. Keep the cheeses out of the refrigerator to promote the mold growth.

What kind of bacteria can grow in cheese?

With these cheeses, the mold can send threads throughout the cheese — contaminating more than you see. In addition, harmful bacteria, such as listeria, brucella, salmonella and E. coli, can grow along with the mold. Mold generally can’t penetrate far into hard and semisoft cheeses,…

Why does Mold grow on bread but not cheese?

The types of mold that grow on bread should grow at different rates from the molds on the cheese. Mold grows for a number of reasons. There must be spores on the food. It is common for foods to have them, but in the rare instance that they are not on the food to begin with, mold will not grow. Moisture content is important, as well as pH levels.

What is the most common mold that grows on cheese?

In fact, particular kinds of cheese require mold during their production. The most common types of mold used to grow cheese are Penicillium (P.) roqueforti, P. glaucum, and P. candidum. These molds help develop unique flavors and textures by eating the proteins and sugars in the milk, resulting in chemical changes ( 1, 2, 3

Is mold on cheese bad for You?

According to the Mayo Clinic, if you were to eat a soft cheese with mold, you increase the risk of being exposed to foodborne pathogens such as listeria, salmonella, and E. coli that grow along with the mold. So always make sure you’re taking note of what type of cheese you’re eating!

Is it safe to eat mold on cheese?

It usually is safe to eat moldy cheese — but there’s a caveat. It really depends on the type of cheese and your individual health. There are certain molds that are used to make cheeses, like Roquefort , bleu cheese, Brie, Camembert and Gorgonzola. These particular cheeses are perfectly safe to eat,…

What are the side effects of eating moldy cheese?

“Some molds produce mycotoxins, which can make you really sick.”. According to the Mayo Clinic, if you were to eat a soft cheese with mold, you increase the risk of being exposed to foodborne pathogens such as listeria, salmonella, and E. coli that grow along with the mold.