Does blue cheese go bad?

In this brief guide, we will discuss the following question, “does blue cheese go bad?”, how to store blue cheese, what are the signs of spoilage, and other queries related to this topic.

Does blue cheese go bad? 

Yes, blue cheese can go bad especially if it is not stored properly. Generally, on the product’s packaging, it is stamped a “best-by” date, so it is recommended to consume, refrigerate or freeze your cheese within this time.

So in the refrigerator, the unopened blue cheese wedge can last for an extra one to two weeks after its expiry date if stored in an air-tight container. However, when it is opened the blue cheese wedge is better consumed within three to four days from its opening.

Regarding blue cheese crumbles, they can last in an unopened container in the refrigerator for additional two or three weeks past their “best-before” date. Hence, once the container or the packaging is opened the crumbles can last for five to seven days in a well-sealed container.

However, if you want to store it for a longer time, freeze it, like that it can last for six months, but this method might decrease the quality of your cheese since both the texture and the taste might be affected by the freezing and the thawing process.

Furthermore, blue cheese wedges or crumbles can not be kept at room temperature for more than two hours because bacteria can start growing in the product at warm temperatures. So, if you forgot to put your cheese in the fridge, consider throwing it away.

How to store blue cheese?

The best two ways to store blue cheese are in the refrigerator or the freezer. To store your blue cheese in the refrigerator, and if it is not packed previously, wrap it in wax paper and then in a plastic or foil paper. Once it is wrapped, place the blue cheese in an air-tight container. 

Moreover, do not store your blue cheese on the door’s shelves, instead put it inside the fridge where the temperature is, kind of, stable and low in order to keep it fresh for as long as we can. Also, keep it away from odiferous food like onions and garlic.

Furthermore, you can keep your blue cheese in the freezer for about six months. Hence, in the freezer, the texture of the cheese will change as well as its taste. So, it is advised to eat your frozen blue cheese within one month of freezing.

How to tell if the blue cheese has gone bad?

One of the signs of blue cheese spoilage is the development of mold on its surface. Mold development can lead to the appearance of green, pink white, or gray spots. Moreover, the smell of the cheese might become stronger and ammonia-like when it goes bad.

However, blue cheese already has a strong smell and odor. But the smell of spoiled cheese varies between safe and non-spoiled cheese and the spoiled cheese that has developed mold and bacteria.

Additionally, one of the spoilage signs of the blue cheese is the color changes. So, the color of the blue cheese might turn from white into yellow, green, blue, or pink sometimes.

Furthermore, the taste of the blue cheese will intensify once it goes bad. Generally, blue cheese has a strong and salty taste which not all people can support and like. So, if you think that your cheese tastes bad, try a small piece of it. Tasking will not make you sick.

What happens if I eat expired blue cheese?

If you eat expired blue cheese you will have a risk of getting sick due to food poisoning. Food poisoning will lead to nausea, vomiting, diarrhea, and abdominal crampings and sometimes it leads to fever and high body temperature, in some cases the patient requires hospitalization.

However, blue cheese has its color from the development of Penicillium which is a mold. This type of mold is generally safe for consumption. 

However, some molds can develop toxins called mycotoxins. These toxins can lead to digestive, and immunological problems as well as cancer.

Furthermore, the blue cheese is aged for two to three months before it’s ready for consumption. So, the penicillium responsible for the taste, the smell, and the color of this cheese is extremely safe for human consumption since it does not secrete toxins.


In this brief guide, we discussed the following question, “does blue cheese go bad?”, how to store blue cheese, what are the signs of spoilage, and other queries related to this topic.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.