Blue cheese blues: 5 telltale signs your cheese has turned sour
What To Know
- Blue cheese typically has a bluish-green or grayish-green color due to the presence of Penicillium roqueforti mold.
- While blue mold is a desired feature of blue cheese, excessive mold growth can be a sign of spoilage.
- If the blue veins become thick, spread beyond the cheese’s interior, or appear on the surface, it’s best to discard the cheese.
Blue cheese, with its distinctive veins of mold and sharp, salty flavor, is a beloved delicacy for many. However, like any other food, blue cheese can go bad over time. Knowing how to tell if blue cheese has gone bad is crucial to ensure food safety and avoid unpleasant experiences.
Signs of Spoiled Blue Cheese
1. Slimy Texture
Fresh blue cheese should have a firm, crumbly texture. If it becomes slimy or sticky, it’s a clear sign of spoilage. The moisture content has increased, allowing bacteria to thrive.
2. Discoloration
Blue cheese typically has a bluish-green or grayish-green color due to the presence of Penicillium roqueforti mold. If the cheese develops black, red, or orange spots, it indicates mold growth that is not the desired blue mold.
3. Unpleasant Odor
Blue cheese has a characteristic pungent odor, but it should not be overpowering or offensive. If the cheese smells sour, ammonia-like, or rancid, it has likely spoiled.
4. Mold Overgrowth
While blue mold is a desired feature of blue cheese, excessive mold growth can be a sign of spoilage. If the blue veins become thick, spread beyond the cheese’s interior, or appear on the surface, it’s best to discard the cheese.
5. Bloating or Cracks
Spoiled blue cheese may exhibit bloating or cracks in its rind. These defects can allow air and bacteria to enter the cheese, accelerating spoilage.
6. Sour or Bitter Taste
Fresh blue cheese has a salty, slightly nutty flavor. If it becomes sour or bitter, it’s a red flag that the cheese has gone bad. The presence of spoilage bacteria can alter the cheese’s taste profile.
7. Expiration Date
Always check the expiration date on the blue cheese package. Consuming expired cheese increases the risk of foodborne illnesses.
How to Store Blue Cheese Properly
To extend the shelf life of blue cheese and prevent spoilage, proper storage is essential:
- Refrigerate: Keep blue cheese in the refrigerator at a temperature of 38-42°F (3-6°C).
- Wrap Tightly: Wrap the cheese tightly in plastic wrap or aluminum foil to prevent air exposure.
- Use a Cheese Keeper: Consider using a cheese keeper designed to maintain humidity and temperature levels optimal for blue cheese storage.
- Avoid Freezing: Freezing blue cheese can damage its texture and flavor.
When in Doubt, Discard
If you’re unsure whether your blue cheese has gone bad, it’s always better to err on the side of caution and discard it. Consuming spoiled cheese can lead to food poisoning and other health issues.
Questions You May Have
Q: Can I still eat blue cheese with a few mold spots?
A: No, it’s not recommended to consume blue cheese with mold spots other than the desired blue mold. These spots indicate spoilage and can pose health risks.
Q: How long does blue cheese typically last in the refrigerator?
A: Properly stored in the refrigerator, blue cheese can last for 2-4 weeks after opening.
Q: Can I freeze blue cheese to extend its shelf life?
A: No, freezing blue cheese is not recommended as it can damage its texture and flavor.
