Do Mushrooms Go Bad ?

Yes, Mushrooms Can Go Bad.  If the mushroom is uncut or not sliced then it can go about 9 to 10 days in the refrigerator and if they are sliced then it can last upto 7 days and cooked mushrooms can also last till 6 to 7 days. Furthermore, there are types of mushrooms that cooked  differently and have different shelf life:

The shelf life mentioned above is under extremely cold temperatures and proper storage conditions. Besides, luckily we can see some clear signs that can help us detect its expiration. 

Warning Signs That Your Mushrooms Have Gone Bad

do mushrooms go bad

Now that we are talking about mushrooms, once I left sliced mushroom in a bowl on the kitchen shelf unattended for hours and when I checked them later they were all slimy and giving off a bad odour. Thus, I am certain that this is the first warning sign to consider, that is, Mushrooms can get slimy if you leave them in the refrigerator for a long period of time, so it is better to use them before the time runs out. 

Furthermore, there is also a possibility that instead of getting slimy they just get all dried up and get wrinkled. But at this stage, they are still considered to be edible but if they are all too shrivelled up then you should probably discard them. However, they develop moulds on it if not stored properly, it is better to throw it off.

And lastly, if they develop a darker colour from what they originally are or maybe dark spots then this is the sign that mushroom have gone bad and it’s time to throw them away. 

What happens If You Have Expired Mushrooms?

If you have mistakenly consumed expired mushroom then there is a possibility that it can affect your health or you can get an upset stomach even reheating them after leaving out for a long time can get you sick. With that being mentioned, I would also like to share  There is a lot of research conducted on poisonous and expired mushroom which says that it causes critical health conditions. (Reference Link 1). 

Note: This is not to scare you but to make you aware of the importance of examining the mushroom before consuming it. 

Moving ahead, to avoid any such happenings, always store the mushroom right and if you’ve consumed the expired mushroom and you are not feeling well then contact your doctor for advice. And always buy the right quality mushroom, and consume them before they get spoiled. 

Why Do Mushrooms Go Bad?

do mushrooms go bad

The main reason for edible mushroom poisoning is associated with their incorrect processing after harvest. The analysis of the circumstances of mushroom collection, transport, and storage shows that the largest percentage of poisoning was connected with long-term storage of mushroom dishes, collecting, and storing them in plastic bags, and long storage of mushrooms. (Reference Link 2)

Now after knowing important insights of mushroom, let’s know the best methods to store mushroom so we can relish the variety with no doubt.

Tips To Store Mushrooms

do mushrooms go bad

Now storing such a fragile vegetable is a very important deed so, for that there are a bunch of things you should keep in mind. Here’s a list of tips to store mushroom in a proper manner. 

  • Make sure whenever you store mushroom leave a little space for air so they don’t get totally dried up. You can use a paper bag with small holes in it.
  • When you buy mushroom they usually come in wrapped sealed packaging so, it’s better to leave them in the same packaging in the refrigerator till you want to use them. Just keep in mind that the packaging should not be damaged. 
  • There is one more way in which you can store mushroom but this method is little time-consuming. In this method, you have to freeze the mushroom wrapped in parchment paper to not let moisture in.


Q1. Can you get sick from eating old mushrooms?
Ans. Yes! You can get sick from eating old or expired mushroom as mushroom are a form of fungi. 

Q2. What are mushroom chocolates or magic mushrooms?
Ans. Magic mushrooms also known as shrooms, mushies, Amani, and philosopher’s stones are cultivated mushroo. These mushrooms contain a psychoactive and hallucinogenic compound called psilocybin, which was first isolated in 1958 by Swiss chemist Dr Albert Hofmann, who also discovered LSD (lysergic acid diethylamide) And chocolate mushroom contain drugs made of magic mushrooms.

Q3. Do psychedelic mushrooms go bad?
Like every other mushroom psychedelic mushroom also go bad. These mushroom too have a 7 to 10 days shelf life. Store them in plastic or paper bags and it is said that freezing and drying them will automatically increase their shelf life. 

Reference Link:

Our mission is to provide accurate and researched insights to our readers. Thus, we wish to share the references of the studies conducted on the subject matter for detailed read for our readers to refer:

1. Ayub Med Coll Abbottabad 2008;20: Mushroom poisoning Clinical Representation and Outcome 

2. National Library of Medicine: A study on circumstances of mushroom collection, transport, and storage

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