Sarah Brown
Mushrooms are a tricky ingredient to store. Their high water content and ability to act like a sponge make them highly susceptible to spoilage. They will only last for 1 to 3 days on the kitchen counter, but storing them in the fridge can extend their lifespan to anywhere between 3 and 14 days, depending on their variety, size, and form. Whole mushrooms will last longer than sliced, and Portobello and cremini varieties are longer-lasting than white button mushrooms. To keep mushrooms fresh for as long as possible, it's important to store them in a paper bag or wrap them in paper towels to absorb moisture, and avoid plastic containers that can trap moisture and speed up spoilage.
| Characteristics | Values |
|---|---|
| Last in the fridge | 3-14 days |
| Storage method | Refrigerator shelves, not in the crisper drawer |
| Storage container | Paper bag, not plastic |
| Storage temperature | 35–40°F (1.5–4°C) |
| Storage with other foods | Avoid placing mushrooms near strong-smelling food |
| Storage after slicing | Store in an air-tight container in the refrigerator |
| Sliced mushroom life | 3 days |
| Freezing | Cook before freezing |
| Freezing life | Up to 12 months |
| Signs of spoilage | Slimy, wrinkled, soggy, spongy, darker colour, smelly, mouldy, soft spots, bad smell, discolouration |
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What You'll Learn
Fresh mushrooms last 3-7 days in the fridge
Fresh mushrooms will typically last between three and seven days in the fridge. However, there are several factors that can influence this timeframe. Firstly, the type of mushroom matters; Portobello and cremini mushrooms tend to have a longer shelf life, while white button mushrooms spoil more quickly. The form of the mushroom is also significant; whole mushrooms will generally last longer than sliced mushrooms.
To maximise the lifespan of fresh mushrooms, it is important to store them correctly. They should be kept on refrigerator shelves, rather than in the crisper drawer, as the high humidity of the crisper drawer can expedite spoilage. It is also recommended to avoid plastic containers, as they can trap moisture and speed up spoilage. Instead, opt for paper bags, which allow for airflow and help prevent excess moisture build-up. Additionally, ensure that the mushrooms are free of excess dirt or moisture before placing them in the fridge, as damp mushrooms are more prone to spoilage.
It is worth noting that cooked mushrooms have a shorter shelf life than raw mushrooms, typically lasting for only three to four days in the fridge. To extend the shelf life of fresh mushrooms beyond a week, consider drying them thoroughly or freezing them after lightly cooking them through methods such as sautéing or steaming.
Signs of spoilage in mushrooms include a slimy texture, discolouration, and an off smell. If any of these indicators are present, it is best to discard the mushrooms as spoiled mushrooms can be dangerous to consume.
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Keep mushrooms in a paper bag in the fridge
Keeping mushrooms in a paper bag in the fridge is a great way to preserve their freshness. Mushrooms are delicate and perishable, so they need to be stored properly. The refrigerator is the best place to keep them, but the spot you choose impacts preservation.
Firstly, it's important to note that mushrooms should not be washed before storing, as this will shorten their shelf life. When storing mushrooms in a paper bag, opt for a brown paper bag, as it will absorb any moisture and keep the mushrooms dry. Paper allows for airflow, preventing excess moisture from building up and causing sliminess or mould. Simply place whole, unwashed mushrooms in a brown paper bag, fold the top over to seal it, and place the bag in the refrigerator. Avoid placing mushrooms near strong-smelling food, as they will absorb those odours.
If you don't have a brown paper bag, you can wrap the mushrooms in a paper towel and place them in a bowl in the refrigerator. The paper towel will absorb moisture, helping the mushrooms stay fresh. However, avoid using plastic containers or bags, especially if they have no holes, as they can trap moisture and speed up spoilage.
Fresh mushrooms will typically last 3-5 days in the refrigerator, but if dried properly, they can last for months or even years. If you can't use fresh mushrooms within a few days, consider drying or freezing them to extend their shelf life.
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Avoid plastic bags, which trap moisture and speed up spoilage
Mushrooms have a high water content and can act like a sponge, absorbing moisture from their surroundings. This is why they are best kept in a paper bag in the fridge, rather than a plastic bag, which can trap moisture and speed up spoilage.
Plastic bags do not allow mushrooms to breathe, and this lack of ventilation can cause excess moisture to build up, leading to slime and mould. Paper bags, on the other hand, allow for airflow, preventing this excess moisture from building up and causing spoilage. Paper bags also absorb any moisture, keeping the mushrooms dry and fresh.
If you don't have a paper bag, you can wrap the mushrooms in a paper towel and place them in a bowl in the fridge. The paper towel will absorb any moisture, helping to keep the mushrooms fresh.
It is also important to avoid washing mushrooms before storing them, as this will shorten their shelf life. Mushrooms should be stored in the refrigerator, ideally on a shelf rather than in the crisper drawer, as the high humidity of the crisper drawer can also cause mushrooms to spoil more quickly.
Overall, storing mushrooms in a paper bag in the fridge is the best way to keep them fresh and prevent spoilage.
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Mushrooms spoil faster when damp
Mushrooms have a high water content and can act like a sponge, absorbing moisture from their surroundings. This makes them great for cooking, but a challenge to store. When damp, mushrooms are more likely to become slimy and spoil faster.
To prevent this, mushrooms should be stored in a way that minimises moisture. It is recommended to use a paper bag, as paper allows for airflow and prevents excess moisture from building up. Plastic containers or bags should be avoided, as they can trap moisture and speed up spoilage. If using a plastic container, it should not be airtight. Mushrooms should also not be stored in the crisper drawer of a refrigerator, as the high humidity will cause them to spoil faster.
To absorb any excess moisture, mushrooms can be wrapped in paper towels and then placed in a paper bag or bowl in the refrigerator. This will help to keep them dry and fresh for longer. It is also important to ensure that mushrooms are free of excess dirt or moisture before storing them, as any dampness will cause them to deteriorate more quickly.
Storing mushrooms in a cool, dry place will help to prolong their life. They should be kept in the refrigerator, where they will last for around 3 to 7 days. If not refrigerated, mushrooms will only last for 1 to 3 days. To further extend their shelf life, mushrooms can be dried or frozen.
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Signs of spoilage: slimy, wrinkled, soggy, spongy, dark, smelly, mouldy
Mushrooms are a versatile ingredient, adding depth and body to a variety of dishes. However, they are perishable and will eventually spoil, even when stored in a refrigerator. Here are some signs of spoilage to look out for:
Slimy
Mushrooms are like sponges and can easily become waterlogged, especially if washed before storage. This can lead to a slimy texture, which is a sign of spoilage. Some mushrooms, like Nameko or those from the Philiota genus, tend to be slimy even when fresh, but they should still be firm. If your mushrooms have a slimy coating and are past their prime, it's best to discard them.
Wrinkled
Mushrooms naturally have a high water content, and as they age, they can become dehydrated, leading to a wrinkled or shrivelled appearance. While slightly wrinkled mushrooms can still be consumed, especially if they smell good, it's a sign that they are past their prime and should be used soon.
Soggy
Mushrooms should be stored in a dry environment to prevent them from releasing water and pulling moisture from the air. If mushrooms become soggy, it's a sign that they have been exposed to too much moisture and are starting to spoil.
Spongy
Fresh mushrooms should have a firm texture. If they become spongy or soft, it's an indication of spoilage, especially if accompanied by other signs such as discolouration or a strange smell.
Dark
Mushrooms can vary in colour, and some naturally have darker hues. However, discolouration can be a sign of decay. If your mushrooms are significantly darker than their original colour or have developed dark spots, it's best to use them soon, as they are likely in the early stages of spoilage.
Smelly
Fresh mushrooms should have a mild, earthy aroma or no noticeable smell at all. If they develop a strong odour, especially a fishy or ammonia-like smell, it's a clear indication that they have spoiled and should be discarded.
Mouldy
Mushrooms are susceptible to mould growth, especially if stored in a moist environment. If you spot mould on your mushrooms, they are no longer safe to eat and should be discarded. However, it's important to note that mushroom mycelium can sometimes resemble mould, so examine your mushrooms closely before discarding them.
To prolong the freshness of mushrooms, it's recommended to store them in a paper bag or paper towel, which helps absorb moisture. Avoid plastic containers, as they can trap moisture and accelerate spoilage. Additionally, ensure that your mushrooms are not placed near strong-smelling foods, as they can absorb those odours.
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Frequently asked questions
Mushrooms will last between 3 and 7 days in the fridge. Whole mushrooms will last longer than sliced.
Mushrooms should be stored on refrigerator shelves, not in the crisper drawer. Wrap them in a paper towel and place them in a paper bag. Avoid plastic bags as mushrooms need to breathe.
Mushrooms will show signs of spoilage such as discolouration, a slimy texture, or a bad smell. If you see any of these signs, throw them out.
Yes, cooked mushrooms can be stored in the fridge but only for 3-4 days.
Yes, but they must be cooked first. Lightly sauté them in butter or steam them, then place them in a freezer bag and store in the freezer for up to 12 months.
