
Grated parmesan cheese is a versatile dairy product used as a key ingredient or garnish in a variety of dishes. It is made from finely ground, aged Parmesan cheese, a hard and granular variety produced from cow's milk. While grated parmesan is a popular choice for consumers, there is often confusion about its shelf life and whether it needs to be refrigerated. The answer depends on several factors, including the type of grated parmesan, storage methods, and environmental conditions. In this discussion, we will delve into the details surrounding the shelf life of grated parmesan cheese and provide guidelines for ensuring its freshness and quality.
| Characteristics | Values |
|---|---|
| Storage | Grated Parmesan cheese should be stored in the refrigerator to keep it fresh and preserve its quality. |
| Temperature | Refrigerate at temperatures below 40°F (4°C). |
| Container | Store grated Parmesan cheese in an airtight container or resealable bag to prevent it from drying out or absorbing odours. |
| Shelf Life | Unopened pre-packaged grated Parmesan cheese can be stored in the pantry for 7 to 9 months. Once opened, it can last for 4 to 6 weeks if stored properly in the refrigerator. |
| Freezing | Grated Parmesan cheese can be frozen and will last for up to 18 months. |
| Expiration Date | Grated Parmesan cheese should be used by the expiration date. However, it can be safe to consume beyond this date if stored properly. |
| Spoilage | Signs of spoilage include an off smell, change in colour, clumpy or slimy texture, and the presence of mould. |
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What You'll Learn

Kraft grated parmesan cheese can be stored at room temperature
Kraft grated parmesan cheese is a convenient and popular product, often found in the iconic green shaker bottle. This cheese is typically sold in the grocery store aisles and does not require refrigeration before opening, making it shelf-stable. The dehydration process during manufacturing contributes to its longer shelf life.
Kraft grated parmesan cheese is produced through a specific procedure that involves grating or shredding hard cheese, followed by dehydration, evaporation, and cooling. This process effectively reduces the fat content, preventing clumping and slowing down the risk of the cheese going bad. As a result, Kraft grated parmesan cheese can be safely stored at room temperature before opening.
However, it's important to note that once the package is opened, Kraft advises storing its cheeses in the refrigerator at a normal temperature of 40 degrees Fahrenheit (4.4 degrees Celsius). While some sources suggest that it can be kept at room temperature for a few weeks after opening, Kraft recommends limiting room-temperature exposure to up to one hour to maintain optimal freshness and quality.
In summary, Kraft grated parmesan cheese benefits from a production process that reduces fat compounds, making it drier than fresh cheese and allowing it to be stored at room temperature before opening. Nevertheless, for maximum freshness and to preserve quality, it is recommended to refrigerate the product after opening and limit its exposure to room temperature.
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Refrigeration slows the risk of cheese going bad
Grated Parmesan cheese is a versatile dairy product that can be used as a topping or ingredient in a variety of dishes. It is made from finely ground, aged Parmesan cheese, giving it a strong, savoury flavour and distinct aroma. While it is a popular choice for consumers, there are often questions about its storage and shelf life, particularly whether it needs to be refrigerated.
Refrigeration is essential to slow the risk of grated Parmesan cheese going bad. Kraft, a well-known producer of grated Parmesan cheese, recommends refrigerating their product to maintain freshness and quality. This is because refrigeration helps to preserve the original flavour and prevent moisture absorption, which can affect the cheese's texture and taste.
When stored in the refrigerator, grated Parmesan cheese can last for several weeks to months. The shelf life depends on factors such as sealing and storage methods. To extend the shelf life, it is advisable to store grated Parmesan in an airtight container or resealable bag in the refrigerator. Additionally, the temperature should be maintained below 40°F (4°C).
It is worth noting that unopened pre-packaged grated Parmesan cheese can be stored in the pantry for around 7 to 9 months. However, once opened, the cheese should be refrigerated and is expected to last for around 4 to 6 weeks. Freezing is also an option to extend the shelf life of grated Parmesan cheese, increasing its longevity to up to 18 months.
While Parmesan cheese has a relatively long shelf life, it is important to monitor it for any signs of spoilage. Indicators of deterioration include an off smell, change in colour, clumpy or slimy texture, and the presence of mould. Proper storage practices, such as refrigeration, are crucial in slowing down the risk of the cheese going bad and ensuring its freshness and quality.
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Grated parmesan cheese can be frozen to extend its shelf life
Grated Parmesan cheese is a popular ingredient in many dishes, but it can be tricky to store. The good news is that grated Parmesan cheese can be frozen to extend its shelf life. Here are some tips to help you do it properly:
First, it is important to note that Parmesan cheese is a hard cheese with a low moisture content, which makes it ideal for freezing. The dehydration process involved in grating or shredding hard cheeses reduces the fat compounds, slowing down the risk of the cheese going bad. This is why grated Parmesan cheese has a longer shelf life than fresh cheese.
When freezing grated Parmesan cheese, it is best to use an airtight container or a heavy-duty freezer bag. This helps to prevent moisture from spoiling the cheese and also reduces the likelihood of clumping. Cornstarch can also be added to absorb any excess moisture. Properly stored, grated Parmesan cheese will maintain its best quality in the freezer for about 12 to 18 months but will remain safe to consume beyond that period.
Once you're ready to use the frozen grated Parmesan cheese, you can take it out of the freezer and place it in the refrigerator to defrost. Grated Parmesan cheese that has been defrosted in the refrigerator can be kept for an additional 3 to 4 days before using. If you're in a hurry, you can also defrost it in the microwave or in cold water, but it should be used immediately after.
It is worth mentioning that frozen grated Parmesan cheese may become crumbly and lose some of its flavor. Therefore, it is best suited for cooked dishes such as sauces, soups, and casseroles, where it can enhance the flavor without being the main focus of the dish.
In summary, freezing is an effective way to extend the shelf life of grated Parmesan cheese. By following these simple steps, you can enjoy the convenience of having grated Parmesan cheese on hand for your culinary creations without worrying about spoilage.
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Grated parmesan cheese should be stored in an airtight container
To maximise the shelf life of grated parmesan, it should be stored in an airtight container in the refrigerator. This will help to preserve its original flavour and prevent moisture from affecting the cheese. The ideal temperature for storing parmesan cheese is below 40°F (4°C).
Unopened, pre-packaged grated parmesan cheese can be stored in the pantry and will generally keep for around 7 to 9 months. Once opened, the cheese should be stored in the refrigerator, where it will last for around 4 to 6 weeks if stored properly. If the cheese is not stored in an airtight container, it may develop clumps, which are a precursor to mould.
Some brands of grated parmesan cheese, such as Kraft, are sold in the unrefrigerated aisle and are shelf-stable for a while. However, once opened, these cheeses should also be stored in the refrigerator to maintain their freshness and quality.
It is important to note that the shelf life of grated parmesan cheese may vary depending on the date printed on the package and the storage conditions. Proper storage is essential to maintaining the flavour and texture of parmesan cheese.
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Unopened grated parmesan cheese can be stored in a pantry
Grated Parmesan cheese is a versatile dairy product that can be used as a garnish or a key ingredient in a variety of dishes. When it comes to storing unopened grated Parmesan cheese, it is generally recommended to keep it in a pantry or kitchen cupboard.
Unopened pre-packaged grated Parmesan cheese can be stored in a cool, dry place like a pantry and will typically maintain its quality for around 7 to 9 months. This is because grated Parmesan has a relatively long shelf life, especially when compared to other types of cheese. The dehydration process involved in grating or shredding hard cheeses reduces the fat content, slowing the risk of the cheese spoiling.
However, it is important to note that the shelf life of any food product may vary depending on the date printed on the package and the storage conditions. While unopened grated Parmesan can be stored in a pantry, it is advisable to check the packaging for specific storage instructions and best-before dates.
Once the package is opened, the cheese should be stored in the refrigerator to maintain its freshness and quality. Proper storage is crucial to prevent spoilage and extend the shelf life of grated Parmesan cheese. When stored in the refrigerator, grated Parmesan can last for several weeks to months, depending on how well it is sealed and stored.
In summary, unopened grated Parmesan cheese can be safely stored in a pantry for up to 9 months. However, once the package is opened, it should be transferred to the refrigerator to ensure its freshness and prolong its shelf life.
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Frequently asked questions
Yes, grated parmesan cheese can go bad if not refrigerated. Kraft advises storing its grated parmesan cheese in the refrigerator at 40°F and keeping it at room temperature for no more than an hour.
Unopened pre-packaged grated parmesan cheese generally keeps for around 7 to 9 months when stored in a pantry. Blocks of parmesan cheese sold in the non-refrigerated section can last for about a year if unopened.
Once opened, grated parmesan cheese can last for around 4 to 6 weeks if stored properly in the refrigerator. To extend its shelf life, keep it in an airtight container or resealable bag in the refrigerator.

























