Can you freeze mushrooms without cooking them first?

In this brief guide we will answer the following question, “can you freeze mushrooms without cooking them first?” in this article, you will get to know the proper ways of freezing raw mushrooms. We will also get to know the benefits of freezing mushrooms and the side effects of eating raw frozen mushrooms.

Can you freeze mushrooms without cooking them first?

Yes, you can easily freeze mushrooms without cooking. The canned mushrooms that are available in the market are raw, and storing the raw mushrooms is easy and they do not go bad easily.

Fresh mushrooms only last 1 week in the refrigerator. On the other hand if you freeze them they will stay put for upto many months in the freezer.

What are the types of mushrooms that are edible?

A mushroom is a fruiting body of the fungi that are peasant above the ground and they have divided into two parts a stem and an upper cap. 

Some of the mushrooms are edible while others are poisonous. Mushrooms are cultivated worldwide due to their demand in the food industry.

There are special people who are known as mushroom hunters and these people know to differentiate poisonous mushrooms from nonpoisonous mushrooms when they are picking mushrooms from the wild. 

Most of the time the edible mushrooms are grown on mushroom farms and they are completely safe to eat. The following types of mushrooms are edible

  • Hericium Erinaceus
  • Shiitake
  • Enoki
  • Maitake 

Some non edible poisonous mushrooms are as follows

  • Amanita phalloides
  • Psilocybe  zapotecorum

What are the proper ways to freeze your uncooked mushrooms?

Freezing uncooked mushrooms is easy. It becomes a lot easier when you are freezing canned mushrooms. They are usually pre sliced; you only need to freeze them as it is. Here we will discuss ways of freezing both types of mushrooms.

  • Canned mushrooms can be frozen in the can you do not need to open the can otherwise their texture and quality might be affected.
  • When you are freezing the raw fresh mushrooms first you need to buy clean and healthy mushrooms. Avoid buying mushrooms that have black patches on them; this might be a sign of spoilage.
  • Wash your mushrooms properly to remove all the dirt from them.
  • Cut the mushrooms into slices or the choice of the piece that you want to add to your dish.
  • Evenly spread the mushrooms on the tray lined with aluminium foil. This will avoid the sticking of mushrooms to each other.
  • Keep them in the freezer for a few hours. Once they are frozen, put them out and store them properly in the air-tight box.
  • You can also blanch or steam your mushrooms before freezing them.
  • For blanching, you can add them to the boiling water and after 3-4 minutes put them out of the water and transfer them to the ice-cold water.
  • After this take a kitchen towel and pat dry them and store them in the freezer in a ziplock bag.
  • When you are ready to eat your frozen mushrooms you can defrost them in the microwave or you can also boil them in the water if you want them for soups.

What are the benefits of freezing raw mushrooms?

Following are the benefits of freezing raw mushrooms:

  • First of all freezing raw mushrooms does not alter their texture while if you freeze cooked mushrooms they will get soggy once you add them to your food and no one likes to eat soggy mushrooms.
  • Freezing mushrooms increases their shelf life for upto many months.
  • Freezing the mushrooms decreases the enzymatic browning which occurs right after cutting the fresh mushrooms.
  • Mushrooms are prone to microbial damage, if your mushroom is brown and has patches on it, it means it has been contaminated with microbes.
  • Research proves that the microbial load of freshly harvested mushrooms increased in 7 days when they were stored at 13 degrees Celsius. Freezing is a safe method to store your mushrooms for a longer duration.

What are the side effects of eating raw frozen mushrooms?

You can have the following side effects if you eat too many raw frozen mushrooms

  • Eating raw mushrooms is never a good idea; they might be contaminated with certain pathogens that cause food-borne illnesses. They may cause vomiting, diarrhoea, stomachache, etc.
  • Raw mushrooms might be cross-contaminated or they can cross-contaminate your food present in the freezer resulting in spoiling that food item.
  • Raw mushrooms might be contaminated with yeast and this can result in serious health problems.


In this brief guide we answered the above question, “can you freeze mushrooms without cooking them first?” in this article, you got to know the proper ways of freezing raw mushrooms. We also got to know the benefits of freezing mushrooms and the side effects of eating raw frozen 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.