
Cheese is a beloved food product made from milk, and it comes in hundreds of varieties. While mould is often a sign of food spoilage, it is also a key component in the creation of many types of cheese. This raises the question: is it safe to eat cheese that has mould on it? Cheddar cheese is a common variety of cheese, and it is a hard, aged cheese that can be affected by mould. So, is cheddar cheese a fungus?
| Characteristics | Values |
|---|---|
| Is cheddar cheese a fungus? | No, but mould is often found on cheddar cheese. |
| Is mould a fungus? | Yes |
| What is mould? | A type of fungus that produces spores. |
| What does mould look like? | Fuzzy, discoloured spots. |
| What does mould smell like? | Sour or "off" odour. |
| What causes mould? | Moist conditions. |
| How to prevent mould? | Store cheese properly. |
| What to do if mould is found on cheese? | Cut off the mouldy part. |
| What types of cheese can be salvaged if mould is found? | Harder cheeses like cheddar, parmesan, and Swiss. |
| What types of cheese should be discarded if mould is found? | Soft cheeses like cottage, ricotta, or cream cheese. |
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What You'll Learn
- Cheddar cheese is not a fungus, but it can become mouldy
- Mould is a type of fungus, and some cheeses are made with mould
- Mouldy cheddar cheese can sometimes be eaten if the mould is cut off
- Cheddar is a hard cheese, so mould is unlikely to grow beneath the surface
- Other mouldy cheeses, like soft cheeses, should be thrown away

Cheddar cheese is not a fungus, but it can become mouldy
Mould plays an integral role in the cheesemaking process for certain varieties of cheese, such as blue cheese and Brie. These cheeses are made with specific types of mould to give them their distinct flavour, odour, texture, or colour. The mould used in cheesemaking is safe to eat and is characterised by blue veins inside the cheese or a thick, white rind on the outside. However, it is important to distinguish between the mould used in cheesemaking and the mould that can grow on cheese due to improper storage.
Cheddar cheese is a hard, aged cheese, and it is less susceptible to mould growth compared to softer cheeses. If mould is spotted on a block of cheddar cheese, it can simply be cut off, and the rest of the cheese is likely safe to eat. This is because the mould has likely not penetrated beyond the surface of the cheese. However, it is important to note that the affected part of the cheese may not taste as intended due to the presence of mould.
To prevent mould growth on cheddar cheese, it is essential to store it properly. Cheddar cheese should be kept in a cool, dry place, and it should be wrapped or stored in an airtight container to minimise exposure to air and moisture. Additionally, buying fresh cheese and consuming it within a reasonable timeframe can help reduce the chances of mould growth. Overall, while cheddar cheese itself is not a fungus, it can become mouldy if not stored or handled properly.
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Mould is a type of fungus, and some cheeses are made with mould
Mould is a type of fungus that produces spores. It is often a sign of food spoilage, but some cheeses are made with mould. These include blue cheese, Brie, Camembert, Humboldt Fog, St. André, Gorgonzola, Stilton, and Roquefort. The mould in these cheeses is safe to eat and gives them their distinct flavour, odour, texture, or colour.
Mould is characterised by fuzzy, discoloured spots and can give off a bad odour. It grows best in warm, moist conditions and can penetrate deep into the food it is growing on. While mouldy cheese may seem like a bad idea to eat, it is usually safe for adults. However, it may be best avoided by those with weakened immune systems, the elderly, or pregnant women.
When mould appears on the surface of a hard cheese like cheddar, parmesan, or Swiss cheese, it can be cut off, and the rest of the cheese is likely safe to eat. This is because the mould has probably not grown beneath the surface. However, if mould is found on soft cheeses like cottage cheese, cream cheese, or ricotta, the entire product should be thrown out as the spores can easily contaminate it.
To avoid mouldy cheese, choose long-aged, hard cheeses like Parmesan, pecorino, older cheddars, or aged gouda. These cheeses are less likely to mould as they age for 18 months or longer. Proper storage is also important to prevent mould growth.
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Mouldy cheddar cheese can sometimes be eaten if the mould is cut off
Mould is a type of fungus that produces spores, which are transported through air, water, and insects. It is usually visible on the surface of the food, but its roots can penetrate deeply. Mould is often a sign of food spoilage, but some types of mould are used in cheesemaking to develop flavour and texture. These kinds are safe to consume.
Mould on cheese isn't always an indicator of spoilage. The moulds used to produce certain varieties are different from those that sprout on old cheese and bread. Those used in the manufacturing process are safe to eat and are characterized by blue veins inside the cheese or a thick, white rind on the outside.
It's important to note that this technique does not apply to soft cheeses or shredded, crumbled, or sliced varieties. Any signs of mould on these types of cheese mean that they should be thrown out immediately as the spores can easily contaminate the entire product. Additionally, any mouldy cheese that smells of ammonia or is both mouldy and wet should be discarded.
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Cheddar is a hard cheese, so mould is unlikely to grow beneath the surface
Mould is often a sign of food spoilage, but some cheeses are grown using mould. This includes blue cheese, where the bluish veins are made by mould, and Brie, which gets its thick outer rind from mould.
Moulds are a type of fungus that produces spores. They are transported through air, water, and insects, and can be found everywhere, including in your refrigerator. Mould tends to be fuzzy and green, white, black, blue, or grey. While mould is generally dangerous to eat, some types are used in cheesemaking to develop flavour and texture and are safe to consume.
It is important to note that mould on cheese is not always an indicator of spoilage. The moulds used to produce certain varieties of cheese are different from those that sprout on old cheese and bread. The moulds used in cheesemaking are safe to eat and are characterized by blue veins inside the cheese or a thick, white rind on the outside.
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Other mouldy cheeses, like soft cheeses, should be thrown away
Cheddar cheese is not a fungus, but it can become mouldy. While mould is often a sign of food spoilage, some cheeses are made using mould. For example, mould is what gives Brie its thick outer rind and soft, creamy texture.
Mould is a type of fungus that produces spores. They are transported through air, insects, and water and can be found everywhere in the environment, including your refrigerator. Moulds generally need oxygen to thrive and grow best in warm, moist conditions.
When mould starts growing on food, it changes the food's appearance and smell, producing a sour or "off" odour. Although moulds are generally dangerous to eat, some types are used in cheesemaking to develop flavour and texture. These kinds are perfectly safe to consume.
However, other mouldy cheeses, like soft cheeses, should be thrown away. Soft cheeses, such as cream cheese, cottage cheese, ricotta, and mozzarella, are high in moisture and not meant to age, so mould indicates spoilage. The spores can easily contaminate the entire product. Therefore, if you spot mould on these types of cheeses, it is best to discard the entire container.
To prevent mould growth on cheese, it is recommended to wrap it in wax paper, foil, or cheese paper, or to use vacuum sealing. Proper storage can help extend the lifespan of the cheese and maintain its quality.
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Frequently asked questions
No, cheddar cheese is not a fungus. However, it is made using microorganisms to produce its flavour and characteristics.
Yes, mould is a type of fungus that produces spores. Moulds are transported through air, insects, and water and can be found everywhere in the environment, including your refrigerator.
It is not recommended to eat mouldy cheese unless it is a type of cheese that is made with mould, such as blue cheese or Brie. Hard, aged cheeses like cheddar can be salvaged if they have a little bit of mould growth. It is best to cut off at least 1 inch (2.5 cm) around and below the mouldy area.
To prevent mould from growing on your cheddar cheese, it is important to store it properly. Keep the cheese in a cool, dry place and wrap it tightly to prevent moisture from getting in. You can also buy long-aged, hard cheeses like aged cheddar, as cheeses that age for 18 months or longer are less likely to mould.

























