It happens to all of us. You open a wedge of your favorite cheese, slice off a few pieces, and then simply push the remaining cheese back into the package, thinking you’ll get to it again soon. A few days later, you open the fridge to find the edges have hardened, and a telltale green fuzz has crept across the surface. The delicious cheese you had looked forward to is now ruined, destined for the trash bin.
Cheese is a delicate and temperamental food, and proper storage is essential to keeping it fresh and flavorful for as long as possible. But with a little know-how, you can prevent your opened cheese from falling victim to the quiet enemies of mold and drying.
The Foes of Opened Cheese: Mold and Drying
Once cheese is exposed to air, it becomes vulnerable to two primary threats: mold and drying out. Mold spores are ever-present in the environment and can quickly take hold on the surface of an opened cheese. And without the protection of its original packaging, the exposed cheese also starts to lose moisture, creating a hard, waxy rind that ruins the texture and flavor.
These issues can arise even with proper refrigeration, as the frequent opening and closing of the fridge door allows air to circulate and promote mold growth and drying. Minimizing this exposure is key to keeping your cheese fresh and edible for as long as possible.
Fortunately, there are several simple techniques you can use to combat these foes and extend the life of your opened cheese.
Wrap It Up: The Right Way to Package Opened Cheese
The key to storing opened cheese is to recreate the airtight environment of its original packaging. This means wrapping the cheese tightly in a material that blocks air and moisture.
Wax paper or parchment paper work well, as they create a barrier without trapping excess moisture. Avoid using plastic wrap, as it can cause the cheese to sweat and become soggy. If you have the original packaging, simply place the cheese back in and reseal it as tightly as possible.
No matter the wrapping material, make sure to press out as much air as possible before sealing. This will help prevent mold and drying. You can also try storing the wrapped cheese in an airtight container or ziplock bag to further protect it from air exposure.
Chilling Out: The Ideal Temperature for Storing Cheese
In addition to proper wrapping, temperature is crucial for keeping opened cheese fresh. The ideal storage temperature for most cheeses is between 35-40°F (2-4°C), which is typically the range of a well-functioning refrigerator.
Avoid storing cheese in the door of the fridge, as this area experiences the most temperature fluctuations when the door is opened and closed. Instead, keep it on a middle or bottom shelf where the temperature is more stable.
Some cheeses, such as soft, fresh varieties, may do better at slightly warmer temperatures around 45-50°F (7-10°C). Experiment to see what works best for the types of cheese you typically buy.
Humidity Matters: Controlling Moisture for Cheese Storage
In addition to temperature, humidity plays a crucial role in cheese storage. Ideally, you want to maintain a humidity level between 80-90% to prevent the cheese from drying out.
If your refrigerator is on the drier side, consider placing a small bowl of water on the shelf next to the cheese. The evaporating moisture will help create the optimal humid environment. You can also try wrapping the cheese in a damp paper towel before sealing it.
On the other hand, excessive moisture can also lead to mold growth. Keep an eye on your cheese and adjust the humidity as needed to strike the right balance.
Timing is Everything: How Long Can Opened Cheese Last?
The shelf life of opened cheese can vary widely depending on the type of cheese, how it’s stored, and how quickly you consume it. As a general guideline:
| Cheese Type | Unopened | Opened |
|---|---|---|
| Hard cheeses (cheddar, Parmesan) | 3-4 months | 3-4 weeks |
| Semi-soft cheeses (Gouda, Swiss) | 2-3 months | 2-3 weeks |
| Soft cheeses (brie, camembert) | 1-2 months | 1-2 weeks |
Remember, these are just guidelines, and the actual shelf life can be affected by factors like storage conditions, how the cheese was handled, and personal preferences. It’s always best to use your senses – sight, smell, and taste – to determine if an opened cheese is still good to eat.
“Cheese is a living, breathing thing. It’s not just a block of protein – it’s a living, breathing ecosystem that requires care and attention. Proper storage is essential to maintaining its quality and flavor.”
– Tia Keenan, cheese expert and author
With the right wrapping, temperature, and humidity control, you can extend the life of your opened cheese and enjoy its full flavor for longer. By taking a few simple steps, you can say goodbye to those moldy, dried-out cheese disappointments and hello to delicious, fresh cheese every time.
FAQs: Keeping Opened Cheese Fresh
How long can I keep an opened block of cheddar cheese in the fridge?
Properly stored, an opened block of cheddar cheese will typically last 3-4 weeks in the refrigerator.
Is it better to wrap cheese in plastic wrap or wax paper?
Wax paper or parchment paper is generally better for storing opened cheese, as it creates a barrier without trapping excess moisture like plastic wrap can.
Can I freeze opened cheese to make it last longer?
Yes, you can freeze opened cheese, but it may affect the texture. Hard and semi-soft cheeses tend to freeze better than soft cheeses. Wrap the cheese tightly and use within 6-8 months for best quality.
How can I tell if my opened cheese has gone bad?
Look for signs of mold growth, an off smell, or a very dry, waxy texture. If the cheese has these characteristics, it’s best to discard it.
Does the type of cheese affect how long it lasts after being opened?
Yes, the type of cheese makes a difference. Hard cheeses like cheddar or Parmesan generally last longer than soft, fresh cheeses like brie or camembert after being opened.
Should I store cheese in the refrigerator door?
No, the door is not the best place for storing cheese, as it experiences more temperature fluctuations. Keep cheese on a middle or bottom shelf of the fridge for more stable temperatures.
Can I reuse the original cheese packaging to store an opened block?
Yes, if you still have the original packaging, you can reuse it to store an opened block of cheese, as long as you reseal it tightly.
How can I add moisture to my cheese storage to prevent drying?
Try placing a small bowl of water next to the wrapped cheese in the fridge, or wrap the cheese in a damp paper towel before sealing it up.