Cheese Storage: How Long Does Block Cheese Stay Fresh?

Cheese is a tasty, nutritious, and versatile food item. However, it is important to know how long it lasts in the fridge to avoid consuming spoiled cheese. The shelf life of cheese depends on the type of cheese and how it is stored. Generally, soft cheeses tend to spoil faster than hard cheeses. For instance, soft cheeses like mozzarella and cream cheese last about 1-2 weeks in the fridge, while hard cheeses like cheddar and gouda can last for several weeks to a few months. Proper storage methods, such as using airtight containers or resealable plastic bags, can also extend the shelf life of cheese.

Hard cheeses can be stored in the fridge for 3-4 weeks

Hard cheeses, such as Cheddar, Parmesan, and Gouda, can be stored in the fridge for 3-4 weeks. This is because they contain less moisture, and are therefore less prone to spoilage from bacteria.

To ensure hard cheeses last this long, it is important to store them correctly. Firstly, avoid touching the cheese with your bare hands, as bacteria can cause mould to grow. Instead, use gloves or clean utensils when handling the cheese. Wrap the cheese tightly in wax, parchment, or cheese paper, and then place it in an airtight container or a plastic zip bag, with most of the air pushed out. Wrapping the cheese in a porous material will help to maintain its moisture.

It is also important to store cheese at a safe temperature. A safe fridge temperature is below 40°F (4°C). Higher temperatures increase the rate at which bacteria multiply, which can cause the cheese to spoil.

Even if stored correctly, hard cheeses can still develop mould. If you notice any, simply cut off at least 1 inch (2.5 cm) around and below the mouldy area. It is also safe to eat white specks or crystallised patches on aged hard cheeses, as these are likely calcium lactate crystals, which form when the lactic acid in cheese combines with calcium.

Soft cheeses last 1-2 weeks in the fridge

Soft cheeses typically last between one and two weeks in the fridge. This is because they have a higher moisture content, which makes them more perishable than harder cheeses. Soft cheeses are also more prone to spoilage from bacteria.

To ensure your soft cheese lasts for up to two weeks in the fridge, it's important to store it properly. Soft cheese should be kept in the fridge at a temperature below 40°F (4°C). It's best to wrap soft cheese in wax, parchment, or cheese paper, rather than tight, non-porous material like plastic wrap, which can dry out the cheese.

It's also important to inspect soft cheese for any signs of spoilage before consuming it. Soft cheeses should be discarded if they show signs of mould, discolouration, or changes in texture, such as becoming overly dry or slimy.

Additionally, soft cheese will have a shorter shelf life once opened, so it's best to only buy cheese for the week ahead.

Vacuum seal or use a ziplock bag to store cheese

Vacuum sealing or using ziplock bags are two popular methods for storing cheese. However, they each have their own advantages and considerations.

Vacuum Sealing Cheese

Vacuum sealing is a useful method for preserving cheese for longer periods. This technique locks in moisture and keeps air out, which can help extend the shelf life of the cheese. To achieve optimal results, it is recommended to wrap the cheese in wax or parchment paper before vacuum sealing. The paper absorbs excess moisture, preventing the cheese from deteriorating for several months. This method is particularly effective for harder cheeses.

Using Ziplock Bags for Cheese Storage

Ziplock bags are a convenient option for cheese storage, but they require careful handling to avoid excess moisture buildup, which can lead to faster mold growth. To mitigate this issue, wrap the cheese in parchment paper before placing it in the bag. Regularly change the paper to ensure it doesn't become too damp. This method is suitable for both hard and soft cheeses.

When using ziplock bags, it is important to avoid touching the cheese with bare hands, as the natural oils from the skin can promote mold growth. Additionally, using clean utensils and work surfaces can help prevent contamination.

Both vacuum sealing and ziplock bags can be effective ways to store cheese, but proper techniques and materials should be employed to maximize the shelf life of the cheese and maintain its quality.

Wrap cheese in parchment paper to maintain humidity

Wrapping cheese in parchment paper is a great way to maintain humidity and keep your cheese fresh. Cheese paper is the ideal material to wrap cheese, as it is coated in wax and polyethylene, allowing excess moisture to escape while still maintaining some humidity. However, parchment paper is a good alternative if cheese paper is not available.

When storing cheese, it is important to avoid using tight, non-porous materials such as plastic wrap, as these can cause the cheese to dry out and harden. Instead, opt for porous materials like parchment paper, which will help the cheese retain its moisture. After wrapping the cheese in parchment paper, you can then place it in a plastic bag or a resealable food container to maintain humidity.

It is also recommended to store cheese in the top or middle shelf of the fridge, or in a drawer, making sure to keep it above raw meats, poultry, and fish to avoid contamination. Keeping the fridge at a safe temperature of below 40°F (4°C) will also help to maintain the quality of the cheese.

Additionally, it is important to note that different types of cheese have varying shelf lives. Soft cheeses typically last 1–2 weeks in the fridge after opening, while most hard cheeses can last 3–4 weeks. To determine if the cheese is still safe to eat, inspect it for mould and smell it to ensure it hasn't gone off. If you notice any mould on hard cheese, simply cut off at least 1 inch (2.5 cm) around and below those spots.

Freezing cheese is not recommended

Unopened blocks of hard cheese can last up to 6 months in the fridge. However, freezing cheese is not recommended.

Freezing cheese can alter its texture and quality. When cheese is frozen, small ice crystals form on the inside, disrupting its internal structure. Once thawed, the cheese releases water, causing it to dry out and become crumbly. This change in texture may be undesirable, especially for cheeses meant to be eaten plain or served on their own. Freezing can also affect the melting properties of certain cheeses. For example, mozzarella that has been frozen for an extended period may not melt as well as fresh mozzarella.

Additionally, freezing can halt the ripening process of cheeses with beneficial, active mold populations, such as blue cheese and Camembert. The low temperatures can damage the microbes essential for the ripening process, potentially decreasing the overall sensory quality of these cheeses.

Furthermore, softer cheeses with higher moisture content are more adversely affected by freezing. They tend to form more ice crystals, which can significantly damage their structure, resulting in a pool of cheese upon thawing. Therefore, it is best to buy and serve soft cheeses fresh.

While freezing can be a convenient way to extend the shelf life of cheese, it is generally recommended to consume cheese fresh to maximize its flavor and texture.

Frequently asked questions