
Mushrooms are a versatile ingredient, but they can be tricky to store. If stored incorrectly, they can quickly become slimy and spoil. So, what's the best way to keep mushrooms fresh for as long as possible? Well, it turns out that the key is to avoid trapping moisture. Mushrooms should be stored in a breathable container, such as a paper bag, in the refrigerator. This allows for better airflow and creates a less damp environment, helping them stay fresh for up to 10 days.
| Characteristics | Values |
|---|---|
| Type of bag | Paper bag |
| Type of paper bag | Brown paper bag |
| Paper bag features | Breathable |
| Other items | Paper towel |
| Storage location | Bottom shelf of the refrigerator |
| Avoid | Plastic containers, humid environments, crisper drawer |
| Duration | Up to 10 days |
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What You'll Learn

Paper bags are best for storing mushrooms in the fridge
Mushrooms are a delicious and versatile ingredient, but they can be tricky to store. To keep mushrooms fresh for as long as possible, it is best to store them in a paper bag in the fridge.
Paper bags offer the ideal balance of air circulation and moisture absorption. Mushrooms need to breathe to stay fresh and edible. Storing them in plastic traps moisture, creating a damp environment that encourages bacteria growth and quickens spoilage. Paper bags, on the other hand, allow mushrooms to breathe, slowing down the drying process and keeping them crisp and fresh for longer.
To store mushrooms in a paper bag, simply place the desired amount of mushrooms in a small paper bag. Then, roll or fold the top of the bag down to close it loosely. This loose closure ensures proper airflow. Place the bag in the fridge, and your mushrooms will stay fresh for 5-10 days, depending on the species and their condition.
It is important to note that mushrooms should never be wet when stored. Additionally, while paper bags are ideal for mushroom storage, they are not necessary for initial transportation. Mushrooms can be transported in the plastic packaging provided by the grocery store or farmer's market, but once opened, they should be transferred to a paper bag for optimal storage.
By following these simple steps, you can ensure your mushrooms stay fresh and flavourful for all your culinary creations.
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Avoid plastic containers as they trap moisture
It is best to avoid plastic containers when storing mushrooms in the fridge as they trap moisture, which contributes to quicker spoilage. Mushrooms are best kept in a breathable container, such as a paper bag, which allows for much better airflow and creates a less damp environment. This is because paper bags absorb excess moisture, helping to keep mushrooms fresh for longer. Mushrooms stored in a paper bag in the fridge can last up to 10 days, whereas mushrooms kept in plastic containers will only last a few days before they start to rot.
To further extend the shelf life of mushrooms, it is recommended to include a paper towel in the paper bag. The paper towel will draw additional moisture away from the mushrooms, helping to keep them dry and fresh. This is especially important if you are storing mushrooms that have been cut or sliced, as they are more likely to dry out.
It is also important to avoid storing mushrooms in the crisper drawer of your fridge, as this is typically the most humid part of the refrigerator. The crisper drawer is designed to create a humid environment, which is ideal for storing leafy greens but not for mushrooms. Instead, mushrooms should be stored on the bottom shelf of the fridge, where it is drier and cooler.
By following these storage tips, you can help to keep your mushrooms fresh and prevent them from becoming slimy or spoilt. Proper storage will also reduce food waste, as you will have more time to use up your mushrooms before they go bad.
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Store sliced mushrooms in an airtight container
Sliced mushrooms are prone to quicker spoilage than whole mushrooms. If you've already sliced your mushrooms, it is recommended to store them in an airtight container in the refrigerator and consume them within three days.
To store sliced mushrooms in an airtight container:
- Place the sliced mushrooms in an airtight container.
- Keep the container in the refrigerator.
- Consume the mushrooms within three days.
It is important to note that storing mushrooms in a sealed plastic container or a jar can trap moisture, leading to quicker spoilage. Therefore, it is recommended to transfer the mushrooms from their original packaging to a breathable paper bag or wrap them in a paper towel before placing them in the refrigerator. This helps to absorb excess moisture and prevent spoilage.
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Place on a shelf in the fridge, not in a door compartment
When storing mushrooms, it is important to remember that they should be placed on a shelf in the fridge, not in a door compartment. This is because the door compartment, or the crisper drawer, is the most humid part of the fridge. Mushrooms are best stored in a dry environment, as they are susceptible to quick spoilage in damp conditions.
The ideal way to store mushrooms is in a paper bag, which allows for better airflow and creates a less damp environment. Paper bags are breathable, and this type of storage will help keep mushrooms fresh for up to 10 days. It is also recommended to include a paper towel in the bag, as this will draw away any additional moisture from the mushrooms.
Mushrooms should be kept uncovered and not in plastic containers or wrappings. Plastic traps moisture, which contributes to quicker spoilage. Mushrooms kept in plastic will last only 3-4 days, whereas those stored in paper bags can last for over a week.
It is best to avoid storing mushrooms in jars or bags that trap moisture, as this will cause them to rot fairly quickly. The paper bag storage method is ideal for keeping mushrooms fresh for longer, and it is a simple solution to the common problem of mushrooms turning dark, spongy, and slimy.
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Freeze cooked mushrooms for up to 12 months
Mushrooms can be frozen for up to 12 months, but freezing them raw can make them very mushy when cooked, as they absorb a lot of water. Therefore, it is recommended to cook them before freezing.
To freeze cooked mushrooms, first, clean the mushrooms with a damp paper towel, brush, or give them a quick rinse with water, but be sure to dry them thoroughly. Trim any dried-out or woody parts of the stems. Cut larger mushrooms into uniform pieces, while smaller mushrooms can be kept whole.
Next, cook the mushrooms by sautéing or steaming them. To sauté the mushrooms, use a small amount of neutral oil in a pan over medium heat. Cook until the mushrooms are fork-tender and the pan is mostly dry. The mushrooms will release moisture into the pan before the liquid evaporates. Allow them to cool completely. To steam the mushrooms, soak them in a bowl with a couple of cups of water and a teaspoon of lemon juice. Place a vegetable steamer basket in the pot, add the mushrooms, cover, and cook for 3 to 5 minutes.
After the mushrooms have cooled, spread them out in a single layer on a lined baking sheet. Place the baking sheet in the freezer for 1 to 2 hours until they are frozen solid. Then, transfer the mushrooms to freezer bags, removing as much air as possible before sealing. Label the bags and store them in the freezer for up to 12 months.
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Frequently asked questions
Mushrooms last in the fridge for around 7-14 days. However, it is recommended that whole mushrooms are used within a week of purchase, and sliced mushrooms within three days.
Mushrooms should be stored in a dry, cool fridge. It is best to avoid plastic containers as they can trap moisture and speed up spoilage. Instead, mushrooms can be stored in a paper bag, a cardboard drinks tray, or a paper towel-lined zip-top plastic bag.
Yes, cooked mushrooms can be stored in the fridge and should be eaten within three days.

























