Can you eat slimy mushrooms?

In this brief guide, we will answer the question, “can you eat slimy mushrooms,” and discuss whether I can cook with mushrooms that have gone slimy, and what is the shelf life of fresh mushrooms.

Can you eat slimy mushrooms?

No, there are no slimy mushrooms that are safe to eat. The best way to tell if a mushroom is safe to eat is by looking at its color, firmness, and texture. White, yellow, or brown spots on your mushrooms are not a good sign, and you should likely throw them away.

Mushrooms with any discolorations will signal something wrong with your mushrooms, and you should likely toss them as well. Slimy mushrooms are abnormal, and they should not be eaten. The best mushrooms have good color, firm flesh, and do not have any slime. Slime is a sign of decomposition.

In addition to slime being an indicator of decomposition in mushrooms, it can also be an indicator of other issues that make them unsafe for consumption: mold (which often tastes bitter); parasites such as nematodes; or bacterial infections like botulism (which can cause serious illness).

Are slimy mushrooms harmful?

It depends on the type of slime that slimy mushrooms are harmful or not.

Sliminess can be caused by a number of different things, including a reaction to handling or being exposed to air, or even just the way a mushroom looks when it’s growing. But there are also some types of sliminess that are caused by mold or bacteria, so it’s important to know what kind of slime you’re dealing with before you start eating your mushrooms.

Can I cook with mushrooms that have gone slimy?

It depends on the type of mushroom whether you should cook slimy mushrooms or not but in general, it’s best to throw away mushrooms that have gone slimy.

The reason for this is that as mushrooms age, they lose moisture and become more susceptible to bacterial growth. This can mean that even if you wash the mushrooms thoroughly before cooking, they may still not be safe to eat.

What is the best way to use old mushrooms?

There are many different ways to use old mushrooms:

The first thing you can do is simply eat them. If you’ve got a few days before they go bad, you can just toss them in a salad or sautee them with some onions for a side dish. It’s not the most exciting way to use old mushrooms, but it’s definitely effective!

You can also make mushroom stock with your old mushrooms. Just chop up some parsley and celery, and throw them into a pot with some water and your old mushrooms. Bring it all to a boil, then simmer on low heat for an hour or so. Strain out the vegetables and keep the stock in a jar in your fridge for cooking later on!

If neither of those options sounds appealing, there are still some other things that you can do with your old mushrooms. You could freeze them (just make sure they’re completely dry first). Or you could also dehydrate them and grind them into powder, then add that powder to any dish that calls for more umami flavor!

What happens if you cook bad mushrooms?

Cooking bad mushrooms can cause you to become very ill.

Cooking bad mushrooms causes them to release toxins into your system that can cause severe nausea, vomiting, diarrhea, and abdominal pain.

The toxins in mushrooms are called amatoxins and phallotoxins. These toxins are heat-stable, which means they will not be destroyed by cooking.

If you suspect that you have eaten a poisonous mushroom, it is important to seek medical attention immediately.

What is the shelf life of fresh mushrooms?

The shelf life of fresh mushrooms depends on the type of mushroom and its environment.

As a general rule, mushrooms will keep for about a week in your refrigerator if they’re stored in an airtight container or bag. Storing them in an open container will allow moisture to evaporate from them more quickly, which may shorten their shelf life.

Rinsing them with cold water before placing them into storage can help you extend their shelf life by reducing the number of bacteria present on their surfaces.

If you’ve purchased mushrooms that are already packaged and sealed in plastic bags or containers, they should remain fresh until their expiration date.

Can you wash slimy mushrooms?

Yes, you can wash slimy mushrooms.

To wash mushrooms:

  1. Fill a bowl with cold water and set it aside.
  1. Dunk each mushroom in the bowl of water (or use a salad spinner if you have one). Make sure to get all sides of the mushroom wet!
  1. When all of your mushrooms are clean, drain them in a colander and pat dry with a paper towel or clean kitchen cloth.

Are mushrooms poisonous?

In most cases, mushrooms are not poisonous. However, there are some exceptions:

  • A few species of fungi contain toxins that can cause serious illness or death if consumed. These include the Amanita phalloides mushroom (causes amatoxin poisoning) and Galerina marginata (causes galerin poisonings).
  • Some mushrooms might be poisonous in large quantities but not in small amounts. For example, the fungus Coprinopsis atramentaria contains coprine, which may cause severe nausea and vomiting if eaten in large amounts.


In this brief guide, we have addressed the question, “can you eat slimy mushrooms,” and other inquiries related to the subject, such as can I cook with mushrooms that have gone slimy, and what is the shelf life of fresh mushrooms.


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.