Should Sliced Mushrooms Be Refrigerated?

Yes, sliced mushrooms can be refrigerated. It is important to refrigerate sliced mushrooms, as they can quickly become contaminated with bacteria. If left at room temperature, the spores may thrive on the mushrooms’ surface, which could lead to food poisoning. The best way to store them is in an airtight container or bag in the refrigerator, which will last up to a week. If you plan to use the mushrooms within a few days, storing them in an open container or paper bag is best. This will allow the air to circulate and help keep the mushrooms fresh temporarily.

What Are Mushrooms?

What Are Mushrooms
Mushrooms are fungi

Mushrooms are fungi. They don’t have roots and leaves like plants but grow in soil or on trees. They come in all shapes and sizes, flavors, and colors. They are a popular ingredient for salads, soups, and other dishes.

How Long Do Mushrooms Last?

Most mushrooms last up to a week if stored properly. To get the most out of your mushrooms, storing them in the refrigerator is recommended. When placed in an airtight container and stored at 40 degrees Fahrenheit or colder, sliced mushrooms can stay fresh for 1-2 weeks. They can become limp and soggy for days if left at room temperature.

Should Sliced Mushrooms Be Refrigerated?

Should Sliced Mushrooms Be Refrigerated
Best Way To Store Mushrooms

Yes, it is important to store sliced mushrooms in the refrigerator. Mushrooms are perishable food that must be refrigerated to maintain freshness, flavor, and texture. If not stored properly, sliced mushrooms can quickly spoil and become unsafe for consumption.

How Long Do Mushrooms Last?

Most mushrooms last up to a week if stored properly.

  • Whole Mushrooms: Whole mushrooms purchased from the grocery store can last up to two weeks in the refrigerator. However, consuming them within seven to ten days of purchase is recommended.
  • Sliced mushrooms: Eating pre-sliced mushrooms from the grocery store within a week is recommended, but some batches may spoil within five days.
    Sliced mushrooms
    Sliced mushrooms
  • Cooked mushrooms: Mushrooms that have been sautéed last longer than sliced raw mushrooms. They can be stored in the fridge for seven to ten days. Remember that if mushrooms are combined with ingredients that spoil quickly, they may expire before that time.
  • Marinated mushrooms: Marinated mushrooms are prepared by soaking mushrooms in olive oil, typically with lemon juice and spices, before refrigeration in a sealed glass jar. These mushrooms can stay fresh for up to fourteen days. 
  • Dried mushrooms: If stored dried mushrooms properly, they can last for three years. You don’t need to keep them in the fridge, and they can be stored on the countertop or in the pantry at room temperature.
  • Frozen mushrooms: Frozen mushrooms will last up to 9 months in the freezer.

How To Store Mushrooms In The Fridge?

  • Use a paper bag to store mushrooms. Do not use plastic bags as they will cause them to spoil faster.
  • Place the mushrooms in the refrigerator and ensure they are well-ventilated, with air circulation around them.
  • If possible, store them away from other foods with odors that may affect the flavor of the mushrooms.
  • Do not wash the mushrooms before them; they should be wiped off with a damp or paper towel.
  • Check them regularly and discard any that have to break down or become slimy.
  • Freeze if you need to store them for longer than three days. Ensure they are stored in airtight containers or bags and used within a few months for optimum quality.

By taking these steps, you can ensure that your mushrooms stay fresh and delicious for the longest time. Refrigerating them is often recommended, but if you are storing them for a short period, it is usually not necessary.

How To Dehydrate Mushrooms For Long-Term Storage?

If you want to store your mushrooms longer, you can dry them. Dehydrating fresh mushrooms is a great way to preserve their flavor and texture while keeping them safe for long-term storage. Here are some simple steps to dehydrate mushrooms:

Step 1: Start with clean, fresh mushrooms. Avoid using limp mushrooms or past their prime.

Step 2: Slice the mushrooms into small, uniform pieces so they will dry evenly.

Step 3: Place the sliced mushrooms on a drying rack and place in an oven set to low heat (140-150 degrees F).

Step 4: Check on the mushrooms periodically, turning them over after about an hour.

Step 5: Once the mushrooms are completely dry and brittle, please turn off the oven and allow them to cool completely before storing them in a sealed container or bag.

Be sure to store dehydrated mushrooms away from light and moisture, as they can quickly rehydrate when exposed to these elements. Dried mushrooms can last up to six months if stored properly in a tight container.

Signs That Mushrooms Have Gone Bad

Signs That Mushrooms Have Gone Bad
Mushrooms Are Bad Signs to Look Out For
  • Mushrooms will have an off smell or the smell of ammonia.
  • The appearance of the mushrooms will be slimy, discolored, and darkened.
  • There may also be tiny spots of mold on the surface.

Best Storage Methods To Keep Mushrooms Fresh

In Their Original Packaging

The best way to store mushrooms is in their original packaging, whether in a paper bag or plastic container. This will ensure they stay freshest for the longest.

In A Container Covered With Plastic Wrap

If you need to keep your sliced mushrooms for a few days, the best way is to store them in an airtight container covered with plastic wrap. Ensure that no air can enter the container and that the lid is tightly sealed. This will ensure that the mushrooms stay as fresh as possible for longer.

In Cardboard Or Pulp Punnets

Sliced mushrooms should be refrigerated if you’ve purchased them in cardboard or punnets. These punnets are typically found at local supermarkets and usually contain pre-sliced mushrooms for convenience. Keep the container closed when storing them in the fridge, as this will help stop them from drying out and becoming slimy.

In Brown Paper Bags

If you don’t have airtight containers, you can use a brown paper bag to store sliced mushrooms in the fridge. Brown paper is slightly porous, allowing some air and keeping humidity out. This will help keep your mushrooms fresh and prevent them from becoming slimy or soggy.

In Cotton Mushroom Bags

If you want to keep mushrooms fresh for up to a week, consider storing them in cotton bags. Unlike plastic storage containers, these specially designed bags allow the mushrooms to breathe and prevent moisture buildup. Place a few dry paper towels in the bottom of the bag, then place the unwashed mushrooms on top. Close or tie the bag tightly and store it in the refrigerator.


Can you leave sliced mushrooms out of the fridge?

No, it would be best if you did not leave sliced mushrooms out of the fridge. They can spoil quickly due to their high moisture content and are best stored in an airtight container in the refrigerator for up to five days. Keeping them at room temperature and covered with a damp paper towel is safe if you plan to use them within a few hours.

Can I freeze sliced mushrooms?

Can I freeze sliced mushrooms
Freeze sliced mushrooms

Yes, you can freeze sliced mushrooms. It’s best to blanch them first to kill any bacteria and enzymes.

Can canned or dried mushrooms be stored at room temperature?

Yes, canned and dried mushrooms have been processed to last longer and can be stored at room temperature.

Can you eat mushrooms every day?

Yes, you can eat mushrooms every day. However, since mushrooms are a good source of essential vitamins and minerals, it is important to consume them in moderation. Eating too many mushrooms daily may cause you to exceed your recommended intake of certain nutrients. One to two servings of mushrooms per day is sufficient for most people.

What are the common types of mushrooms?

Mushrooms come in a variety of shapes, sizes, and colors. Common edible mushrooms include white button mushrooms (Agaricus bisporus), crimini or baby bella mushrooms, oyster mushrooms (Pleurotus ostreatus), shiitake mushrooms (Lentinula edodes), enoki mushrooms (Flammulina velutipes), and maitake mushrooms (Grifola frondosa).


Should Sliced Mushrooms Be Refrigerated - Infographic
Should Sliced Mushrooms Be Refrigerated – Infographic

It is recommended that sliced mushrooms should be refrigerated to keep them fresh, as they can spoil quickly if left at room temperature. Refrigerating your mushrooms will help them last for up to 5-7 days. To ensure the best results, store them in a paper bag or container and use them within one week of purchase. Additionally, it is important to maintain food safety by keeping mushrooms away from other foods that could contaminate them. By following these simple storage tips, you can enjoy the freshness and flavor of your sliced mushrooms for longer.