Does Parmesan cheese go bad?
Parmesan cheese is a unique food known for its distinctive flavor and texture. While there are different types of Parmesan cheese available, including fresh and grated varieties, many people wonder about its shelf life and whether it can go bad. In this article, we will explore the topic of Parmesan cheese spoilage and discuss storage methods to ensure its longevity.
Understanding Parmesan Cheese
Parmesan cheese, also known as Parmigiano-Reggiano, is a hard cheese that originated in Italy. It is made from cow’s milk and aged for a considerable period of time, typically 12 to 36 months. This aging process gives Parmesan its unique flavor and grainy texture.
Shelf life of Parmesan cheese
Parmesan cheese has a relatively long shelf life compared to many other dairy products. The shelf life of Parmesan cheese depends on whether it is unopened or opened and the type of Parmesan cheese you have.
Unopened Parmesan cheese
Unopened Parmesan cheese, whether in block form or grated, has a long shelf life when stored properly. Blocked Parmesan cheese can last up to a year when stored in a cool place, such as the refrigerator. Grated Parmesan cheese in unopened containers usually has a “use by” date that indicates the recommended time period for best quality. However, it can be consumed after this date.
Opened Parmesan cheese
Once opened, the shelf life of Parmesan cheese decreases, but it can still be enjoyed for several months. Grated Parmesan cheese may deteriorate more quickly when exposed to air. It is important to store opened Parmesan cheese in airtight containers or resealable bags to preserve its freshness. When properly stored, opened Parmesan cheese can last up to several months.
Storage Tips for Parmesan Cheese
Proper storage is essential to maximize the shelf life and maintain the quality of Parmesan cheese. Here are some storage tips to keep in mind:
Block Parmesan Cheese
– Wrap the block of Parmesan cheese tightly in wax paper or plastic wrap.
– Place the wrapped cheese in an airtight container or storage bag.
– Store the container or bag in the cheese drawer of the refrigerator or in the coldest part of the refrigerator.
– Keep cheese away from moisture and strong odors.
Grated Parmesan Cheese
– Place opened grated Parmesan cheese in an airtight container or resealable bag.
– Squeeze out any excess air before sealing the container or bag.
– Store the container or bag in the refrigerator.
– Avoid storing grated Parmesan cheese near foods with strong odors, as it may absorb odors.
Signs of spoiled Parmesan cheese
While Parmesan cheese has a long shelf life, it is important to know the signs of spoilage. Here are some indicators that Parmesan cheese may have gone bad:
- Mold: If you notice mold growing on the surface of the cheese, it is a clear sign of spoilage. However, if only a small area is affected, you can cut it off and still eat the rest of the cheese.
- Off odor: If the Parmesan cheese emits a strong, unpleasant odor, it may be spoiled. Fresh Parmesan cheese has a distinct aroma, so any foul or rancid odor is a sign of spoilage.
- Change in texture: Parmesan cheese should have a firm, grainy texture. If it becomes excessively dry, crumbly, or develops a slimy texture, it is likely spoiled.
- Discoloration: Any unusual discoloration, such as yellowing or dark spots, may indicate spoilage.
Can you eat expired parmesan cheese?
In general, eating expired Parmesan cheese is unlikely to cause harm if it has been stored properly and shows no signs of spoilage. The expiration date on the package is often a “best by” date, indicating the period of peak quality. However, even after this date, Parmesan cheese is safe to eat as long as it has not spoiled.
If you have a block of Parmesan, you can cut off any moldy parts and use the rest. However, it is important to use your judgment and rely on your senses to determine if the cheese is still edible.
Conclusion
Parmesan cheese, whether in block or grated form, has a relatively long shelf life. When properly stored in the refrigerator, unopened Parmesan cheese can last up to a year, while opened Parmesan cheese can last for several months. By following proper storage practices and recognizing signs of spoilage, you can enjoy Parmesan cheese for an extended period of time without compromising its quality. Remember to wrap block Parmesan cheese tightly, store it in an airtight container, and keep it away from moisture and strong odors. For grated Parmesan, place in an airtight container or bag, remove excess air, and store in the refrigerator.
If you notice mold, an unpleasant odor, changes in texture, or discoloration, the Parmesan cheese may be spoiled and should be discarded. However, if the cheese has been stored properly and shows no signs of spoilage, eating it after the expiration date is unlikely to cause any harm.
In conclusion, Parmesan cheese has a long shelf life and can be enjoyed for months or even up to a year when properly stored. By following the recommended storage tips and being aware of signs of spoilage, you can enjoy the unique flavor and texture of Parmesan cheese without worrying about its quality.
FAQS
How long does unopened Parmesan cheese keep?
Unopened Parmesan cheese, whether in block or grated form, can last up to one year when properly stored in a cool place, such as a refrigerator.
Can I eat Parmesan cheese after the expiration date?
Yes, you can consume Parmesan cheese after the expiration date if it has been stored properly and shows no signs of spoilage. The expiration date is often a “best by” date that indicates the period of peak quality.
How long does Parmesan cheese keep once opened?
Once opened, Parmesan cheese can be stored in the refrigerator in an airtight container or resealable bag for up to several months.
How do I know if Parmesan cheese has gone bad?
Signs of spoilage in Parmesan cheese include mold growth, an off-flavor, changes in texture (excessively dry, crumbly, or sliminess), and discoloration (yellowing or dark spots).
Can I cut off moldy portions of Parmesan cheese and still use it?
Yes, if you notice mold on Parmesan cheese, you can cut off the affected portions and use the rest, as long as the remaining cheese shows no signs of spoilage.
Can I freeze Parmesan cheese to extend its shelf life?
Freezing Parmesan cheese is possible and can help extend its shelf life. Grated Parmesan can be frozen in resealable bags, while block Parmesan can be grated before freezing for better results. However, freezing can affect the texture of the cheese, so it is recommended that frozen Parmesan cheese be used in cooked dishes rather than for sprinkling.