Should You Refrigerate Mushrooms Yes, And Heres How To Store Them

Mushrooms are fungi that grow naturally in the wild. They are also cultivated commercially for food. They are usually eaten raw or cooked.

There are hundreds of different types of mushrooms, each with its own unique flavor and texture. Some are meaty while others are delicate. The most common varieties include Portobello, button mushroom, shiitake, oyster, enoki, maitakes, portabella, crimini, chestnut, chanterelle, porcini, king bolete, lobster, morels, etc.

The best way to store fresh mushrooms is by keeping them refrigerated until you’re ready to use them. Mushrooms are one of the most versatile foods out there. They can be used in soups, salads, stir-fries, pasta dishes, casseroles, and even desserts.

But did you know that mushrooms can also be stored in the refrigerator? In fact, they should be refrigerated because they contain water and if left at room temperature, they could spoil.

Here’s how to store mushrooms properly so you can enjoy them for months to come.

Should you refrigerate mushrooms?

Yes! If you want your mushrooms to last longer than a few days, then keep them cold. This will help preserve their quality as well as extend their shelf life.

Can You Freeze Mushrooms, and Should You?

You should keep fresh mushrooms in the fridge or a dry pantry where the temperature does not exceed 5 degrees Celsius (41 degrees Fahrenheit). Mushrooms will continue to grow a little after they’ve been selected and packaged, so don’t be alarmed if you notice some fuzz on one side. It doesn’t mean it has spoiled. Just trim off any excess growth before using.

When you are planning to put mushrooms inside the fridge, make sure you remove all items from the caps. Stems have an enzyme called alpha-amylase which causes mushrooms to turn brown when exposed to air. Also, do not wash mushrooms unless absolutely necessary. Washing removes nutrients and makes them lose moisture faster.

How long can I store my mushrooms in the fridge?

You can safely store mushrooms for up to three weeks in the fridge. However, this depends on what type of mushrooms you buy. For example, white button mushrooms can stay good for about two weeks whereas cremini mushrooms need only five days.

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If you plan to freeze mushrooms, you’ll get better results if you first blanch them. Blanching means cooking them briefly in boiling water. After removing them from heat, drain them thoroughly and pat them dry with paper towels. Then place them into freezer bags and seal tightly. Frozen mushrooms retain their color and taste much better than those kept in the fridge.

Can mushrooms go bad in the fridge?

Yes, but not necessarily right away. There are several factors that determine whether or not mushrooms become moldy. These include:

How Long Do Mushrooms Last? Everything You Need To Know - GroCycle

• Temperature – Mold spores thrive between 20°C and 25°C, so storing them above these temperatures may cause them to multiply quickly.

• Moisture content – When mushrooms absorb too much humidity, they start growing bacteria and other microorganisms. So, try to avoid placing them near moist surfaces like bread baskets, cheese trays, condiments, fruit bowls, etc.

• Light exposure – Exposure to light accelerates the process of spoiling mushrooms. Therefore, always cover containers containing mushrooms with plastic wrap or foil.

How long do fresh mushrooms last at room temperature?

Fresh mushrooms usually last anywhere from four hours to 24 hours depending on the variety. They tend to deteriorate more rapidly during hot weather. But even though they’re best eaten within a day or two, there is no harm in keeping them around for a week or two.

Furthermore, mushrooms stored properly in the refrigerator won’t spoil until they reach room temperature again. In fact, most people find that refrigerated mushrooms actually improve over time because they develop a richer flavor.

What happens if I forget to take out mushrooms from the fridge?

Mushroom cells contain enzymes that break down proteins and carbohydrates. As such, they release ammonia gas when left alone in the fridge. The amount released varies according to how many mushroom cells were present. If your mushrooms look discolored, it could be due to excessive amounts of ammonia being produced by the cells. This will eventually lead to mushrooming as well as off-flavors.

To prevent this problem, simply keep mushrooms covered with damp cloths while they are still cold. Alternatively, you can also use ice packs to cool them down. Once cooled, transfer them to sealed containers and then pop them back into the fridge.

Are slimy mushrooms safe to eat?

Slimy mushrooms aren’t dangerous; however, they might give you a stomachache. The culprits behind such symptoms are enzymes known as amylases.

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Amylases break down starch molecules found in foods like potatoes, corn, wheat, rice, beans, peas, oats, barley, tapioca, etc., causing them to release sugars. In addition, amylases also affect proteins and fats present in food. As a result, they produce gas and sometimes lead to diarrhea.

So what should we do about slimy mushrooms? First, rinse them under running water before eating. Second, don’t consume large quantities of starchy foods immediately after consuming slimy mushrooms. Third, make sure to drink plenty of fluids throughout the meal. Finally, consult your doctor if you experience any digestive problems following the consumption of slimy mushrooms.

Canned mushrooms are much easier to store

If you want to preserve mushrooms without having to worry about their quality, canned ones are an excellent option. Canned mushrooms have been preserved using saltwater brine which helps retain moisture inside the cans. However, these types of mushrooms may not taste very good since they’ve lost some of their natural flavors.

On the other hand, dried mushrooms are better than canned ones because they maintain all of their original nutrients. Plus, they come packed in airtight packages so they stay fresher longer. Dried mushrooms are available at grocery stores but they cost significantly more than canned varieties. So unless you plan to cook lots of dishes containing mushrooms, buying fresh ones instead would probably save money overall.

We recommend getting the ones in a jar because they’re easy to open and close. Also, they usually last for months or even years depending on where you buy them. They’ll lose their potency once opened though.

How long do cooked mushrooms last?

Cooked mushrooms lose up to 50 percent of their volume once removed from heat. That means that one cup of uncooked mushrooms contains only half a cup of cooked ones.

Therefore, cooking reduces the shelf life of mushrooms considerably. However, there is no need for concern if you’re planning on storing cooked mushrooms in the refrigerator or freezer. They’ll remain edible even after several months of storage. Just remember to remove them from the fridge 30 minutes prior to serving.

Can I freeze raw mushrooms?

Yes! Raw mushrooms can easily be frozen. Simply place them in resealable plastic bags and seal them tightly. Then label each bag with its contents and date.

When it comes time to thaw out the mushrooms, just leave them at room temperature until ready to serve. This method will ensure that they won’t get mushy when defrosting. If you’d prefer to use them straight away, then simply pop them into boiling hot water for 5-10 seconds. Remove them from heat and drain well.

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Tips on picking the best mushrooms

Mushroom hunting isn’t as simple as it sounds. There are many different kinds of mushroom species around us. Some grow underground while others thrive above ground. The most common type of mushroom is called button mushrooms.

These look similar to white buttons and they’re often sold by supermarkets. Buttons aren’t actually mushrooms; rather, they belong to another group known as fungi.

Check the mushrooms for firmness

The first thing you should check when selecting mushrooms is whether they feel soft or hard. Soft mushrooms tend to be younger whereas harder ones are older. Young mushrooms also contain less liquid than mature specimens.

Check the harvest date

Another way to tell how old your mushrooms are is by looking at the harvest date printed on the package. Freshly picked mushrooms don’t have any dates printed on them. On the other hand, those that were harvested weeks ago might carry labels indicating the month and year of production.

A little bit of white fuzz is okay

If you see some small bits of white fuzz growing on top of the mushrooms, this doesn’t mean anything bad has happened to them. It’s perfectly normal for mushrooms to develop these tiny hairs during growth. In fact, they help protect the mushrooms against insects and bacteria.

Look for signs of spoilage

Once you’ve selected your mushrooms, make sure not to purchase any that appear spoiled. These include mushrooms that smell musty or moldy. Avoid buying mushrooms that seem slimy too.

Also, avoid purchasing mushrooms that show signs of bruising or discoloration. These could indicate an infestation of pests such as worms or molds.


Whether you choose to store fresh mushrooms in the fridge or freezer depends entirely upon what kind of meal you plan to prepare using them. For example, if you want to cook them right away, then freezing would probably work better since they’ll stay fresher longer.

However, if you intend to keep them for later consumption, then refrigeration may prove more convenient. Either way, always follow proper food safety guidelines so that you don’t end up getting sick.

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