Feta cheese is a beloved Greek delicacy known for its tangy flavor and crumbly texture. Its shelf life can vary depending on storage conditions and whether it’s opened or unopened. Properly stored, an unopened package of feta cheese can last 2-3 weeks beyond its printed date in the refrigerator.
Once opened, feta cheese typically keeps for 5-7 days when stored in an airtight container. However, submerging the cheese in brine can significantly extend its lifespan. Feta stored in brine can remain fresh for up to a month in the refrigerator.
For optimal freshness, always keep feta cheese refrigerated at 40°F (4°C) or below. Pay attention to signs of spoilage such as mold growth, off-odors, or changes in texture. By following proper storage techniques, you can enjoy this versatile cheese in your favorite dishes for weeks to come.
Understanding Feta Cheese
Feta cheese is a versatile Greek dairy product known for its tangy flavor and crumbly texture. It comes in different varieties and has unique properties that affect its shelf life and storage requirements.
Types of Feta Cheese
Feta cheese varies based on the milk used and production methods. Traditional Greek feta is made from sheep’s milk or a blend of sheep’s and goat’s milk. Some producers outside Greece use cow’s milk.
Feta is available in several forms:
- Blocks in brine
- Crumbled in containers
- Vacuum-sealed packages
The packaging type influences feta’s shelf life. Brine-packed feta typically lasts longer than crumbled or vacuum-sealed varieties.
Composition and Properties
Feta cheese has a high moisture content and acidic pH, which impact its storage and spoilage rate. Its composition includes:
- 45-60% moisture
- 14-21% protein
- 21-26% fat
The cheese’s texture can change over time, becoming drier or softer depending on storage conditions. Unopened feta in brine maintains its quality longer than opened packages.
Crumbled feta tends to dry out faster than block feta. The smaller surface area of crumbles exposes more of the cheese to air, potentially accelerating quality changes.
Shelf Life and Expiration
Feta cheese has a variable shelf life depending on its packaging and storage conditions. Proper handling and awareness of expiration dates are crucial for maintaining quality and safety.
Unopened vs Opened Feta Cheese
Unopened feta cheese typically lasts 2-3 months past the printed date when refrigerated. Once opened, its shelf life decreases significantly. Opened feta should be consumed within 5-7 days for best quality.
Sealed feta in brine can last up to 6 months refrigerated. After opening, transfer the cheese to an airtight container with brine and use within 1-2 weeks.
Crumbled feta has a shorter shelf life due to increased surface area. Use within 5 days of opening for optimal freshness.
Reading Expiration Dates
Feta cheese packages often display “best by” or “use by” dates. These indicate peak quality rather than safety cut-offs. Properly stored feta can remain safe to eat beyond this date.
Check for both manufacture and expiration dates. The difference between these dates gives insight into the expected shelf life.
Use your senses to evaluate feta past its printed date. If it looks and smells fine, it’s likely safe to consume.
Signs of Spoilage
Mold growth is the most obvious sign of spoiled feta. Discard the cheese if you see any fuzzy spots, regardless of color.
Discoloration can indicate spoilage. Fresh feta is white or slightly yellow. Avoid feta that has turned dark yellow, brown, or pink.
A sour or rancid smell suggests the feta has gone bad. Fresh feta has a tangy, salty aroma.
Texture changes can signal spoilage. Feta should be crumbly but moist. Avoid cheese that’s excessively dry, slimy, or has separated.
Proper Storage Methods
Proper storage is crucial for maintaining the quality and extending the shelf life of feta cheese. The right techniques can help preserve its flavor, texture, and safety for consumption.
Refrigeration Techniques
Store feta cheese in the refrigerator at temperatures between 35°F and 40°F (1.7°C to 4.4°C). Place it in the coldest part of the fridge, typically the back of the bottom shelf. Keep feta in an airtight container or tightly wrapped in plastic wrap to prevent drying out and absorbing odors from other foods.
For opened packages, transfer the cheese to a clean, sealable container. Avoid leaving feta at room temperature for extended periods. If using for cooking, remove only the amount needed and promptly return the rest to the refrigerator.
Storing Feta in Brine Solution
Brine storage is an effective method for preserving feta cheese. Create a brine solution by mixing water and salt in a 1:1 ratio. Place the feta in a clean container and cover it completely with the brine. Ensure the container is airtight to prevent contamination.
Feta stored in brine can last up to 4-6 weeks in the refrigerator. Change the brine solution weekly to maintain freshness. This method helps retain moisture and prevents the cheese from drying out or developing mold.
Maintaining Freshness with Proper Storage
To maintain optimal freshness, handle feta cheese with clean utensils to avoid introducing bacteria. For crumbled feta, use a clean spoon each time you remove some from the container. Store feta cheese blocks whole and cut off portions as needed.
If freezing feta, wrap it tightly in plastic wrap and place it in a freezer bag. Frozen feta can last up to 3 months but may change in texture upon thawing. Thaw frozen feta in the refrigerator and use it within 5 days.
Regularly check stored feta for signs of spoilage such as mold growth, off-odors, or changes in texture. Discard any cheese that shows these signs to ensure food safety.
Extending Shelf Life
Proper storage techniques can significantly increase how long feta cheese remains fresh and flavorful. Refrigeration is key, but freezing and careful handling of leftovers also play important roles.
Freezing Feta Cheese
Freezing feta cheese can extend its shelf life by several months. Cut the cheese into small portions before freezing, as it cannot be refrozen once thawed. Place the pieces in airtight freezer bags or containers. Remove as much air as possible to prevent freezer burn.
Set the freezer temperature to 0°F (-18°C) or below for optimal preservation. Frozen feta will keep for up to 3 months. When ready to use, thaw the cheese slowly in the refrigerator overnight.
Keep in mind that freezing may alter the texture of feta, making it slightly crumblier. The flavor typically remains intact, though it may become slightly milder.
Handling Leftovers
Proper handling of leftover feta cheese is crucial for maintaining its quality. Store opened feta in an airtight container in the refrigerator at 34°F to 38°F (1°C to 3°C).
For brined feta, keep it submerged in its original brine. If the original brine is unavailable, create a saltwater solution using 1 cup of salt per 4 cups of water. This brine helps preserve the cheese’s moisture and flavor.
Use clean utensils when handling feta to prevent contamination. Consume leftover feta within 5-7 days for best quality. If mold appears or the cheese develops an off odor, discard it immediately.
Identifying Spoiled Feta
Recognizing spoiled feta cheese involves examining visual cues, texture changes, and odor indicators. Proper identification helps ensure food safety and prevent consumption of potentially harmful dairy products.
Visual Inspection
Feta cheese typically has a creamy white color. Any discoloration, especially yellow or brown spots, may indicate spoilage. Look for mold growth, which can appear as fuzzy patches in various colors such as green, blue, or black. Even small amounts of mold on feta cheese mean it should be discarded entirely.
Check the brine solution if the feta is stored in liquid. Cloudiness or unusual particles floating in the brine can be signs of bacterial growth. Clear brine is ideal for fresh feta.
Texture and Smell Considerations
Fresh feta has a crumbly yet creamy texture. If the cheese becomes slimy, excessively soft, or develops a gritty texture, it may have gone bad. Spoiled feta often feels sticky or tacky to the touch.
The smell of feta should be tangy but not overpowering. A sour, rancid, or ammonia-like odor indicates spoilage. Trust your nose – if the cheese smells off or unpleasant, it’s best to discard it.
Taste should only be used as a last resort. If feta tastes extremely sour or has an unpleasant flavor, spit it out and discard the rest.