How Long Are Mushrooms Good? Ultimate Guide to Freshness

Are you a mushroom lover? If yes, then you might have come across the question of how long mushrooms last. This guide will help you understand how long mushrooms are good, how they spoil, and how to keep them fresh for longer periods. Mushrooms are delicate and can spoil easily than other vegetables.

Factors that influence the shelf life of mushrooms

The shelf life of mushrooms depends on several factors including:

  • Type of mushroom
  • Quality of mushrooms
  • Temperature
  • Humidity
  • Handling and storage

Type of Mushroom

Different types of mushrooms have different shelf lives. For example, Portobello mushrooms have a longer shelf life as compared to button mushrooms. Shiitake mushrooms are also known for their extended shelf life since they are usually dried. Morels, on the other hand, have a shorter shelf life and should be consumed as soon as possible.

Quality of Mushrooms

The quality of mushrooms also affects how long they will last. Fresh, firm, and unblemished mushrooms will last longer than those that are already wilted, with brown spots or bruises. Always choose mushrooms that are in good condition to prolong their shelf life.


Mushrooms stored at room temperature will spoil faster than those stored in the refrigerator. To prolong their shelf life, store mushrooms in the refrigerator crisper, which is usually between 34-38°F.


Mushrooms can easily get slimy if exposed to humidity. It is recommended to store them in a paper or cloth bag rather than a plastic bag. This will help prevent moisture buildup and prolong their shelf life.

Handling and Storage

Proper handling and storage are crucial for extending the shelf life of mushrooms. Always handle mushrooms gently and avoid crushing them. Store them in a clean and dry container to prevent contamination.

Signs that your mushrooms are no longer good

Knowing when mushrooms are no longer edible is important to avoid food poisoning. Here are some signs that your mushrooms are no longer good:

  • Sliminess
  • Foul smell
  • Mold growth
  • Abnormal color, such as brown or black spots
  • Wrinkles, shrivel, or drying out

If your mushrooms show any of these signs, discard them immediately. Eating spoiled mushrooms can cause food poisoning symptoms such as vomiting, diarrhea, and stomach cramps.

How long are mushrooms good for?

The shelf life of mushrooms depends on several factors, including their type, quality, temperature, humidity, and storage. Typically, mushrooms can last for up to 7-10 days when stored properly.

Here is a quick guide to the shelf life of different types of mushrooms:

Mushroom Type Shelf Life (Refrigerator)
Button 7-10 days
Portobello 7-10 days
Shiitake 7-10 days
Morels 3-4 days
Truffles 1 week

How to store mushrooms

Here is how to properly store mushrooms in your fridge and extend their shelf life:

Use a paper or cloth bag

Do not store mushrooms in a plastic bag as it can cause moisture buildup that can lead to spoilage. Instead, use a paper or cloth bag that will allow the mushrooms to breathe.

Avoid washing mushrooms

Mushrooms are like sponges and can absorb water, making them slimy and leading to quick spoilage. Avoid washing them before storage. Instead, wipe them off with a damp cloth or paper towel.

Store in the refrigerator crisper

Store mushrooms in the refrigerator crisper, which has a temperature of 34-38°F. This will help slow down the rate of spoilage.

Separate mushrooms from other vegetables

Mushrooms release moisture that can cause other vegetables to spoil quickly. Hence, it’s best to store mushrooms separately from other fruits and vegetables.


How long can you keep cooked mushrooms in the fridge?

Cooked mushrooms can last for up to 7 days in the refrigerator when stored properly in an airtight container.

Are slimy mushrooms bad?

Yes, slimy mushrooms are bad and are an indication of spoilage. Do not consume them as they can cause food poisoning.

Can you freeze mushrooms to extend their shelf life?

Yes, you can freeze mushrooms to extend their shelf life. First, clean the mushrooms thoroughly and slice them. Blanch them in boiling water for 3-5 minutes and then transfer them to a freezer-safe bag or container. They will last for up to 8 months in the freezer.

Can you store leftover mushrooms in the can?

No, it’s not recommended to store leftover mushrooms in the can. Instead, transfer them to an airtight container and store in the refrigerator.


Mushrooms are a nutritious and tasty vegetable, but they are also delicate and can spoil easily. Proper handling and storage are crucial for extending their shelf life. By following the tips above, you can ensure that your mushrooms stay fresh for longer periods.


1. United States Department of Agriculture. (2021).

2. Washington State University Extension. (2021). Can I Preserve Foods in Canning Jars in a Dry, Cool Place and Not Store Them in a Processed Canning Method That Uses Heat?

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