
White mushrooms are a versatile ingredient, but they can be tricky to store. The secret to storing mushrooms is to prevent them from getting slimy, which is caused by bacteria decomposing the fungi. The best way to prevent this is to store mushrooms in a paper bag or paper towel-lined zip-top plastic bag in the fridge. This will absorb the moisture that mushrooms naturally release and prevent them from getting slimy. Additionally, it is recommended to avoid washing mushrooms before storing them and to keep them away from strong-smelling foods in the fridge, as mushrooms will absorb odors due to their porous nature.
| Characteristics | Values |
|---|---|
| Container | Paper bag, paper towel-lined zip-top bag, net bag |
| Storage Environment | Dry, cool, well-ventilated, not in the crisper drawer |
| Washing | Avoid until ready to cook |
| Shelf Life | 5-7 days |
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What You'll Learn

Paper bags are best
If you want to keep your white mushrooms fresh for as long as possible, storing them in a paper bag is the best option. Paper bags are breathable, which helps to prevent the formation of moisture that can cause mushrooms to rot and become slimy. This is a common issue with sealed plastic bags, which trap moisture and don't allow the mushrooms to breathe.
Paper bags are also ideal because they can be kept in the refrigerator, which is the best place to store mushrooms. Mushrooms have a high water content and are susceptible to absorbing moisture, so keeping them in a cool, dry place like the fridge is essential for prolonging their life. The fridge also helps to prevent the growth of bacteria and mould that can occur at room temperature.
When storing mushrooms in a paper bag, it's recommended to place them in the refrigerator on a shelf, rather than in the crisper drawer. The crisper drawer tends to be too moist, which can encourage slime formation. Additionally, avoid washing the mushrooms before storage, as this adds moisture. Instead, wipe them clean and place them in the paper bag.
For added protection against moisture, you can line the paper bag with paper towels. The paper towels will absorb any excess moisture released by the mushrooms, further reducing the risk of slime. This method allows you to keep the mushrooms fresh for several days and even up to a week.
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Plastic bags should be avoided
To prevent moisture buildup, it is recommended to use paper bags or paper towels for mushroom storage. Paper bags are breathable and absorbent, helping to keep mushrooms dry and fresh for longer periods. If using a plastic container or bowl, lining it with paper towels can help absorb excess moisture and prevent spoilage.
Additionally, it is important to avoid crowding mushrooms together in a container. Leaving space between them allows air to circulate, reducing the likelihood of moisture buildup. Storing mushrooms in a dry, cool refrigerator can also help prolong their shelf life.
Another option for storage is to use a net bag, such as those used for onions. Hanging the bag from a hook or nail near a window can provide the added benefit of exposing the mushrooms to ultraviolet light, which can increase their vitamin D content. However, it is important to note that glass can block ultraviolet light, so storing mushrooms in a refrigerator or container made of glass may not provide the same vitamin D enhancement.
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Keep them in the fridge
Keeping white mushrooms in the fridge is an effective way to prolong their life. Mushrooms have a high water content and are susceptible to absorbing moisture, so it is important to keep them dry and cool.
Firstly, it is best to avoid storing mushrooms in the crisper drawer of the fridge, as this environment is too moist. Instead, place them on a shelf in the fridge. If you buy mushrooms pre-packaged, you can simply keep them in the fridge as they are. However, it is important to note that sealed plastic packaging can cause mushrooms to rot, as it prevents them from breathing. Therefore, if you buy loose mushrooms, it is recommended to wrap them in paper towels and place them in an open plastic bag, or, even better, a paper bag. Paper bags are breathable and will absorb the moisture that mushrooms naturally release, preventing them from getting slimy.
Another method for loose mushrooms is to place them in a large glass bowl, lined with paper towels, and covered with another layer of paper towels. This allows you to check the freshness of the mushrooms daily. However, it is important to note that one source found that this method led to the formation of water droplets and a slight odour after several days.
To summarise, keeping mushrooms in the fridge is an effective way to prolong their life, but it is important to use appropriate packaging and avoid moist environments to prevent the growth of slime.
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Use a glass bowl with paper towels
To store white mushrooms using a glass bowl and paper towels, follow these steps:
Firstly, choose a large glass bowl that is roomy enough to prevent the mushrooms from being crowded. Line the bottom of the bowl with paper towels, then spread out the mushrooms on top. Cover the mushrooms with another layer of paper towels. This method helps to absorb any excess moisture, preventing the mushrooms from becoming slimy.
One advantage of using a glass bowl is that you can easily check the freshness of the mushrooms daily. However, it is still recommended to store the bowl of mushrooms in the fridge, as they have a high water content and will stay fresher for longer in a cool environment.
When you are ready to use the mushrooms, simply lift off the top layer of paper towels and take out the desired amount. If any dirt is present on the mushrooms, be sure to wipe it off before cooking.
After handling the mushrooms, you may wish to replace the top layer of paper towels to ensure the mushrooms remain covered. This will help to keep them fresh for longer.
By using a glass bowl with paper towels, you can effectively store white mushrooms while also being able to monitor their freshness on a daily basis.
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Net bags are also an option
If you don't have a net bag, you can save the next bag of onions or other produce (like lemons or oranges) that you buy that comes in a net bag. You can also buy net bags specifically for produce storage.
If you're using a net bag, it's important to note that the mushrooms will be exposed to air, so they will dry out faster. Make sure to keep an eye on them and use them as soon as they start to look dry.
Net bags are a good option for storing mushrooms because they allow for air circulation, which helps to prevent the buildup of moisture. As mentioned earlier, mushrooms have a high water content and are sponges for other moisture, so it's important to store them in a way that promotes dryness.
In addition to net bags, there are a few other storage methods that can help keep mushrooms fresh. One is to use a paper bag, which can also help to absorb moisture. Another option is to place the mushrooms in a paper towel-lined plastic bag, which will absorb the moisture released by the mushrooms and prevent them from getting slimy.
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Frequently asked questions
The best way to store white mushrooms is to place them in a paper bag or a paper towel-lined zip-top bag. Roll the top of the bag down to allow the bag to stay open and place them in the fridge on a shelf.
White mushrooms should be used within a day or two before they start to get slimy. However, storing them in the fridge can prolong their life for up to a week.
White mushrooms that have gone bad will have a slimy texture and a strong odour. They may also be discoloured and have visible mould on them.

























