
Mushrooms are a versatile staple in any kitchen, with their meaty texture and umami flavor. Fresh mushrooms have a shelf life of about a week, but freezing them can extend their shelf life by several months. Freezing mushrooms is a great way to reduce food waste and always have tasty fillers handy. There are two ways to freeze mushrooms: cooked or steamed. Cooking them first draws out the internal moisture, ensuring a nicer texture and more intact mushroom for use post-freeze. Frozen mushrooms should always be used in cooked dishes and not raw preparations, as freezing changes their structure and texture. To freeze button mushrooms, wash and trim them, cut them into uniform pieces, sauté them in a neutral oil, and then transfer them to a freezer-safe container like a zip-top bag, removing as much air as possible before sealing and labeling.
| Characteristics | Values |
|---|---|
| Reasons to freeze button mushrooms | To extend shelf life, reduce food waste, and always have mushrooms handy |
| How to freeze button mushrooms | Freeze cooked or steamed mushrooms after sautéing; transfer to a freezer-safe container, removing air before sealing and labelling |
| How long button mushrooms last in the freezer | Up to six months |
| How to use frozen button mushrooms | Cook straight from frozen; add to dishes like soups, pasta sauces, casseroles, stir-fries, etc. |
| How long frozen button mushrooms last after thawing | Not more than a day; may become soggy due to water release |
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What You'll Learn
- Before freezing, wash and trim mushrooms of woody bits and stems
- Soak in lemon water, steam, then ice bath before drying and freezing
- Freeze in a single layer, then transfer to a zip-top bag
- Frozen mushrooms are best used in cooked dishes, not raw
- Frozen mushrooms can be added straight to dishes like soups and stir-fries

Before freezing, wash and trim mushrooms of woody bits and stems
Freezing button mushrooms is a great way to reduce food waste and ensure you always have tasty fillers handy for your meals. Before freezing, it is important to prepare the mushrooms to preserve their taste, nutritional profile, and texture. Firstly, wash the mushrooms thoroughly to remove any dirt or residue. Then, trim the mushrooms of any woody bits and stems that you don't want in your dishes. You can decide to leave the stems on smaller mushrooms, such as button mushrooms, if you prefer.
It is important to remove any unwanted parts of the mushrooms as freezing can change the structure and texture, and you want to ensure they are pleasant to eat. After washing and trimming, dry the mushrooms well by patting them with a towel. You want to ensure they are as dry as possible before the next steps.
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Soak in lemon water, steam, then ice bath before drying and freezing
To prepare button mushrooms for freezing, you can soak them in lemon water, steam them, then give them an ice bath before drying and freezing. This method can help to preserve the mushrooms' texture and flavour.
Firstly, to prevent discolouration, soak the mushrooms in a mixture of two cups of water and one teaspoon of lemon juice for five to ten minutes. Next, steam the mushrooms for three to five minutes. To do this, bring a pot of water to a boil, place a steamer basket inside, and add the mushrooms. After steaming, immediately place the mushrooms in an ice bath for the same amount of time that they were steamed.
Before freezing, it is important to dry the mushrooms thoroughly. Mushrooms have a high water content, which makes them prone to freezer burn. To avoid this, squeeze out as much air as possible before sealing the mushrooms in a freezer bag. You can also use a FoodSaver to vacuum-pack them.
It is worth noting that freezing mushrooms may affect their quality, texture, flavour, and nutritional composition. Therefore, it is recommended to use fresh mushrooms when possible.
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Freeze in a single layer, then transfer to a zip-top bag
Freezing button mushrooms is a great way to reduce food waste and ensure you always have tasty fillers handy for your meals. To freeze button mushrooms in a single layer before transferring them to a zip-top bag, follow these steps:
Firstly, wash the mushrooms thoroughly and trim off any woody bits or stems. Then, dry the mushrooms well. It is important to keep mushrooms dry to prevent spoilage and maintain freshness. You can use paper towels or a brown paper bag to absorb any moisture before placing them in the refrigerator.
Next, cut the mushrooms into uniform pieces, such as quarters or slices. Small mushrooms can be left whole if they are less than one inch in diameter. After cutting, sauté the mushrooms in a neutral oil until the pan is dry and the mushrooms are tender. Cooking the mushrooms draws out their internal moisture, ensuring a nicer texture and more intact shape post-freeze.
Once the mushrooms have cooled, place them in a single layer on a parchment-lined baking sheet and freeze them until solid. Finally, transfer the frozen mushrooms to a zip-top bag, removing as much air as possible before sealing. Label the bag with the date, as correctly prepared and stored mushrooms can last in the freezer for up to six months.
When you're ready to use your frozen mushrooms, simply add them straight into cooked dishes like stews, casseroles, pasta bakes, and stir-fries. Frozen mushrooms should not be eaten raw as freezing changes their structure and texture, making them unpleasant to eat without cooking.
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Frozen mushrooms are best used in cooked dishes, not raw
Mushrooms are a versatile staple in any kitchen, known for their meaty texture and umami flavor. They are also a good source of vitamin D, folate, and other nutrients. Freezing mushrooms is a great way to extend their shelf life and reduce food waste. However, it's important to note that freezing changes the structure and texture of mushrooms, and they won't be pleasant to eat raw. Here are some tips and guidelines for freezing and using frozen button mushrooms:
Preparing Mushrooms for Freezing:
Before freezing, it's important to wash the mushrooms thoroughly and trim any woody bits or unwanted stems. You can cut them into uniform pieces, such as quarters or slices, or leave them whole if they are small (less than one inch in diameter). Soaking the mushrooms in a solution of water and lemon juice before steaming can help prevent discoloration. After steaming, plunge the mushrooms into ice water, strain, and pat them dry. Spread the mushrooms on a parchment-lined baking sheet and place them in the freezer. Once frozen solid, transfer them to a labelled resealable freezer bag, removing as much air as possible before sealing.
Using Frozen Mushrooms:
Frozen mushrooms are best used in cooked dishes and not raw. Cooking ensures better flavor and texture, as mushrooms tend to release moisture when thawed, which can make them soggy and mushy. You can add frozen mushrooms directly to recipes like soups, stews, casseroles, pasta sauces, stir-fries, and more. Simply warm them up by mixing them into your dish as it cooks. If you recook frozen mushrooms, you may compromise their nutritional value, flavor, and texture. Frozen mushrooms are best used within 3 to 6 months for optimal taste and nutritional value.
Benefits of Freezing Mushrooms:
Freezing mushrooms can help reduce waste and extend their shelf life. It can be a more affordable option, and frozen mushrooms can be a handy addition to various cooked dishes, adding both flavor and nutrients.
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Frozen mushrooms can be added straight to dishes like soups and stir-fries
Freezing button mushrooms is a great way to reduce food waste and always have a tasty filler handy for your meals. It's important to note that freezing changes the structure and texture of mushrooms, so frozen mushrooms should always be used in cooked dishes and never raw.
To freeze button mushrooms, start by washing them thoroughly and trimming any woody bits or stems. You can cut the mushrooms into uniform pieces, such as quarters or slices, or leave them whole if they are small enough (less than one inch in diameter). Soak the mushrooms in a bowl of water with a teaspoon of lemon juice for about 10 minutes to prevent discolouration. Next, steam the mushrooms for 3-5 minutes and then transfer them to an ice water bath. Once they are cool, spread the mushrooms on a towel and pat them dry. Place the mushrooms in a single layer on a parchment-lined baking sheet and put them in the freezer. Once they are frozen solid, transfer the mushrooms to a labelled resealable freezer bag, removing as much air as possible before sealing. Frozen mushrooms are best used within 3-6 months.
Frozen mushrooms can be added straight to cooked dishes, such as soups, stir-fries, casseroles, pasta sauces, and gravy. Simply add the frozen mushrooms to your warm broth, crushed tomatoes, or other cooked recipe ingredients, and heat gently until they are warmed through. This method of using frozen mushrooms ensures a better flavour and texture, as cooking the mushrooms before freezing draws out their internal moisture.
It is not recommended to thaw frozen mushrooms at room temperature or in the fridge, as they naturally release water during the thawing process and can become soggy. However, if you are making blended burgers or meals, you can thaw the mushrooms by placing them in the fridge for up to 24 hours before using them.
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Frequently asked questions
Wash the mushrooms and trim them of any woody bits or stems. Dry the mushrooms thoroughly, then cut them into uniform pieces. Sauté the mushrooms in a pan with a small amount of neutral oil until they are tender. Allow the mushrooms to cool, then lay them on a tray and freeze until solid. Transfer the frozen mushrooms to a labelled, resealable freezer bag, removing any excess air before sealing.
Frozen mushrooms will last up to six months in the freezer. It is recommended that you use them within three months for the best quality.
Frozen mushrooms should be cooked straight from frozen and added to dishes that are cooked. They can be added to soups, stews, casseroles, pasta sauces, stir-fries, and more. Simply add them to the dish and heat gently until they are warmed through.

























