
Trumpet mushrooms, also known as oyster mushrooms, are a delicious and versatile ingredient. However, they can quickly become slimy and inedible if stored incorrectly. So, what's the best way to store them? Well, it depends on how long you want to keep them for. If you plan on eating them within a few days, storing them in a paper bag in the fridge is the best option. This will keep them fresh for up to a week. If you need to store them for longer, freezing or dehydrating them are both good options. Freezing them will make them last for about a month, while dehydrating them can extend their shelf life to up to a year!
| Characteristics | Values |
|---|---|
| Storage time | Up to a week in the refrigerator |
| Containers | Breathable containers, paper bags, plastic boxes with perforations, airtight containers |
| Temperature | 32-39°F |
| Cleaning | Use a dry soft brush, avoid washing |
| Drying | Dehydrator, low-temp oven, or warmth from a wood burner |
| Freezing | Freeze raw or stir-fried, in an airtight container or freezer bag |
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What You'll Learn

Refrigerate in a paper bag
Refrigeration is the best way to keep trumpet mushrooms fresh for up to a week. They should be stored in a breathable container, such as a paper bag, which allows air to circulate and prevents the buildup of condensation. Paper bags are also effective at absorbing excess moisture released by the mushrooms, thus preventing them from becoming soggy or mouldy.
To store trumpet mushrooms in a paper bag, first ensure that they are clean and dry. Gently wipe away any dirt with a cloth or paper towel, or use a soft brush to remove any residual dirt or debris. Avoid washing the mushrooms if possible, as this can make them slimy and reduce their shelf life. If you must wash them, be sure to pat them dry before placing them in the paper bag.
Place the clean, dry mushrooms in a brown paper bag. Fold or roll the top of the bag over to secure it, and then place the bag in the main compartment of your refrigerator. Avoid placing the bag in the crisper drawer, as this environment tends to be too moist and can cause the mushrooms to spoil more quickly.
It is also important to avoid storing mushrooms near foods with strong odours or flavours, as they can absorb these odours like a sponge. Pungent foods such as onion, celery, garlic, ginger, or durian should be kept away from the mushrooms to prevent any undesirable flavour transfer.
When stored properly in a paper bag in the refrigerator, trumpet mushrooms can last for about 4-5 days. This storage method helps to maintain the freshness and quality of the mushrooms, delaying the onset of spoilage and extending their shelf life.
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Freeze in an airtight container
Freezing is a great option if you want your trumpet mushrooms to last for about a month. To freeze them, make sure they are stored in an airtight container or a dedicated freezer bag. You can freeze them either raw or after stir-frying them. Portioning them out before freezing is a good idea, so you don't have to thaw the entire batch at once.
When you are ready to use them, take them out of the freezer and let them thaw for a few minutes. They will be ready to use in no time!
However, freezing may not be the best option for all types of mushrooms. Some people have reported that freezing certain types of mushrooms can turn them into a gooey mess when they are thawed. This is because freezing can compromise the structure of the mushroom's mycelium, causing it to become a slimy mass when defrosted.
Therefore, if you are unsure about freezing your trumpet mushrooms, you might want to consider other storage methods, such as drying or dehydrating them. Dried mushrooms can be stored in airtight containers and take up very little space. They can also be easily rehydrated when needed, making them a convenient option.
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Dehydrate and powder
Dehydrating and powdering your trumpet mushrooms can be a great way to preserve them for long-term storage. Here is a step-by-step guide on how to do it:
Preparing the Mushrooms
Before you start the dehydration process, it's important to clean your mushrooms thoroughly. Use a damp cloth or paper towel to wipe off any debris. Avoid soaking the mushrooms in water as they will absorb it and become soggy. After cleaning, place the mushrooms on a towel or a screen in a sunny window to remove excess water, then let them air-dry thoroughly.
Dehydrating the Mushrooms
There are several methods you can use to dehydrate trumpet mushrooms:
- Dehydrator: Use a dehydrator with a temperature setting between 135 to 150 degrees Fahrenheit. If your dehydrator doesn't have a temperature setting, use the "vegetable" setting or monitor the mushrooms closely to prevent over-drying.
- Oven: Set your oven to a low temperature, around 170 to 220 degrees Fahrenheit. Place the mushrooms on a baking sheet and dehydrate for several hours until crispy.
- Air-drying: Spread the mushrooms on a mat or screen mesh in a sunny window. You can also hang them in bunches or string them up with a needle and thread. Air-drying may take longer, and you'll need to ensure good air circulation.
Regardless of the method, the mushrooms are fully dehydrated when they snap like chips and show no signs of moisture.
Powdering the Mushrooms
Once the mushrooms are fully dehydrated, let them cool to room temperature. Then, use a coffee grinder or similar appliance to grind them into a fine powder. You can also use a mortar and pestle for smaller batches.
Storing the Powder
Store your mushroom powder in airtight containers such as glass jars or ziplock bags. Place them in a cool, dry, and dark location. Properly dehydrated and stored mushroom powder can last for several years.
With this method, you can enjoy the unique flavour and versatility of trumpet mushrooms year-round. Remember to label your containers with the date and content to keep track of your mushroom powder inventory!
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Store in a breathable container
Trumpet mushrooms should be stored in a breathable container, such as a paper bag, which allows air to circulate freely. This prevents the mushrooms from deteriorating in a humid environment. Paper bags are also useful for absorbing excess moisture, which prevents the mushrooms from becoming soggy or mouldy.
If you are storing the mushrooms in a paper bag, fold the top of the bag over and place it in the main compartment of your refrigerator. Avoid placing the bag in the crisper drawer, as this is too moist and can cause the mushrooms to spoil more quickly.
If you are storing the mushrooms in their original packaging, open it up to allow air to flow and prevent condensation. If you are storing loose mushrooms, wrap them in paper towels and place them inside a brown paper bag.
Mushrooms stored in a breathable container in the refrigerator should last at least four to five days.
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Rehydrate in milk
Oyster mushrooms, or Pleurotus ostreatus, are known for their unique meaty texture and umaminess. They are widely consumed and loved by mycophiles around the world. While they are a delightful ingredient, they do not have a long shelf life and can get slimy, wrinkly, and unappetizing within a few days.
One way to extend their shelf life is to dehydrate them. Dehydrated mushrooms can last up to 6 months on the shelf. When dehydrating mushrooms at home, a food dehydrator is the easiest method. However, other methods, such as using the warmth of a wood burner, can also be used. Once completely dry, the mushrooms are stored in airtight containers or jars.
When it's time to use the dried mushrooms, they can be rehydrated in milk. This method is especially good if you plan to flour and fry the mushrooms or use them in gravy. Rehydrating in milk is also a good option if you want to add the mushrooms to soups or sauces. The milk bath adds flavour and nutrients to the mushrooms as they rehydrate.
It is important to note that while freezing is a popular method for preserving mushrooms, it may not be suitable for oyster mushrooms. Freezing can affect the texture of the mushrooms, making them slimy and gooey when thawed. Par-cooking the mushrooms before freezing may help mitigate this issue.
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Frequently asked questions
Fresh trumpet mushrooms can be stored in the refrigerator for up to a week.
Fresh trumpet mushrooms should be stored in a breathable container, such as a paper bag, or wrapped in a paper towel and placed inside a brown paper bag. They should be stored in the main compartment of the refrigerator, not the crisper drawer, as the high humidity can cause them to spoil quickly.
Long-term storage options for trumpet mushrooms include freezing or drying/dehydrating them. Frozen trumpet mushrooms can last for about a month, while dried mushrooms can be stored in an airtight container in your pantry for up to a year.
























