
Mushrooms are a type of fungus that contains psilocybin, a hallucinogenic compound. Fresh mushrooms don't last very long and typically stay fresh for about 10 days if properly refrigerated. However, there are ways to extend their lifespan, such as freezing, marinating, or dehydrating them. Properly dried and stored mushrooms can last for several months or even years, depending on various factors such as storage conditions, dosage, and individual characteristics like body weight and metabolism. It's important to be cautious with older mushrooms as they can cause unintentional trips due to irregular potency, and consuming spoiled mushrooms can lead to food poisoning and other health risks.
| Characteristics | Values |
|---|---|
| Shelf life | Fresh mushrooms should be eaten within 10 days of being harvested. |
| Storage | Store in the original container until opened, then transfer to a paper bag. Keep in the refrigerator. |
| Preservation | Freeze, marinate, dehydrate, or preserve in honey. |
| Signs of spoilage | Sliminess, dark spots, shriveling, or a pungent odor. |
| Health risks | Food poisoning, allergic reactions, respiratory issues, and interference with trips. |
| Potency | Fresh mushrooms are more potent than dried or aged ones. |
| Effects | Hallucinations, altered thinking, warped sense of time, heightened senses, mood elevation, increased focus, enhanced creativity, and heightened emotional sensitivity. |
| Duration of effects | 3-6 hours, with residual effects lasting until the next day. |
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What You'll Learn
- Fresh mushrooms should be refrigerated and are best eaten within 10 days
- Dried mushrooms can last months or years if stored in airtight containers
- Signs of spoilage include sliminess, shrivelling, and dark spots
- Freezing, marinating, or dehydrating mushrooms can extend their lifespan
- Psilocybin, the main psychoactive compound, decomposes over time

Fresh mushrooms should be refrigerated and are best eaten within 10 days
Fresh mushrooms are best eaten within 10 days of being harvested. They should be refrigerated to slow down decomposition and kept in their original container before use. After opening, they can be transferred to a paper bag, which allows the moisture they naturally retain to be slowly released. Plastic bags should be avoided as the trapped moisture will cause mushrooms to age quickly.
Mushrooms are a type of fungus, making them vulnerable to mould and decay if not stored correctly. Fresh mushrooms that have gone bad will have a slimy texture, look shrivelled, or have dark spots. They can also develop light bruises or mild discolouration on the caps from handling during packaging. If stored in a cool, dark, and dry environment, fresh mushrooms can last beyond 10 days.
Dried mushrooms can be stored in airtight containers in a cool, dark place for up to 12 months, although they do lose potency over time. Freezing or dehydrating fresh mushrooms can also extend their lifespan. Frozen mushrooms can last for four years or more without losing potency, while dehydrated mushrooms can be ground into a powder and added to smoothies or soups.
It is important to note that mushrooms contain psilocybin, a hallucinogenic compound that decomposes over time. Aged mushrooms may result in irregular potency and unintentional trips. Proper storage is crucial to maintain the quality of mushrooms and prevent potential health risks associated with consuming spoiled produce.
Consuming spoiled mushrooms can lead to food poisoning, with symptoms such as nausea, vomiting, and diarrhoea. Spoiled mushrooms may also develop mould, which can cause allergic reactions or respiratory issues if consumed. Therefore, it is essential to store mushrooms correctly and consume them within the recommended timeframe to ensure food safety and maintain their freshness and potency.
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Dried mushrooms can last months or years if stored in airtight containers
Fresh mushrooms have a short shelf life and can spoil within a few days if not properly refrigerated. However, dried mushrooms can last for months or even years if stored correctly.
Drying mushrooms removes moisture, reducing the likelihood of spoilage and the growth of microbes. This makes drying mushrooms a great option if you want to extend their lifespan.
To store dried mushrooms for an extended period, it is crucial to keep them in a cool, dark, and dry environment. They should be stored in airtight containers to minimize exposure to air and moisture. This prevents spoilage and helps maintain their quality and potency.
By following these storage guidelines, dried mushrooms can be safely consumed after their initial harvest or purchase, making them a convenient option for those who want to enjoy mushrooms over a more extended period.
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Signs of spoilage include sliminess, shrivelling, and dark spots
Mushrooms are a type of fungus, and like all fungi, they are susceptible to spoilage. Fresh mushrooms, in particular, do not keep for very long. If not properly refrigerated, they can spoil within a few days. Signs of spoilage include sliminess, shrivelling, and dark spots.
Sliminess is a sign that mushrooms are about to decompose. A film of slime is an indication that the mushroom is no longer fresh and should not be consumed. While spots on mushrooms are not always a cause for concern, if they are deep in colour and are combined with other signs of spoilage, such as sliminess, then it is best to discard the mushrooms. Some varieties of mushrooms naturally have dark spots or discolouration, and they may develop mild discolouration on the caps from handling during packaging.
To extend the shelf life of mushrooms, they can be dried, frozen, or marinated. Drying mushrooms removes moisture, reducing the likelihood of spoilage and microbial growth. Frozen mushrooms can last for four years or more without losing potency, while dried mushrooms stored in a cool, dark, and dry environment can last for several months to a year. Proper storage is crucial to prevent spoilage and maintain potency.
Fresh mushrooms should be stored in their original container until opened and then transferred to a paper bag. Plastic bags should be avoided as they trap moisture, causing mushrooms to age quickly. Refrigeration slows down decomposition, but it is important to note that freezing fresh mushrooms without prior drying can make them mushy.
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Freezing, marinating, or dehydrating mushrooms can extend their lifespan
Fresh mushrooms have a short shelf life and can spoil within a few days if not properly refrigerated. However, freezing, marinating, or dehydrating mushrooms can extend their lifespan.
Freezing mushrooms can be a convenient way to preserve them, but it is important to note that fresh mushrooms have a high water content, which can lead to texture changes upon freezing. To successfully freeze mushrooms, it is recommended to cook or blanch them before freezing, as this can help reduce the negative impact of crystallizing water droplets on their texture. Roasted or cooked mushrooms can be frozen and later thawed for use in sauces or other dishes. Some people also suggest freezing sliced raw mushrooms for pizza toppings or tossing them directly into sauces without thawing first.
Dehydrating mushrooms is another effective method to extend their lifespan. Dehydration removes moisture, reducing the likelihood of spoilage and microbial growth. Dehydrated mushrooms can be stored for months or even years when properly stored in airtight containers. The drying process can be done in an oven or a dehydrator, with the latter providing better results. Cleaned and sliced mushrooms are arranged on trays, ensuring no overlap to allow for even airflow. The drying temperature and time depend on the thickness of the slices, with thicker slices taking longer to dry. Once dried, the mushrooms should be cooled, transferred to airtight containers, and stored in a cool, dry, and dark place. To use, dehydrated mushrooms can be rehydrated by soaking them in boiling water, regaining a texture similar to fresh mushrooms.
Marinating mushrooms is another way to extend their lifespan. There are various recipes available for marinated mushrooms, often involving a mixture of ingredients such as onion, vinegar, olive oil, herbs, and spices. The mushrooms are simmered in this mixture and then transferred to sterile containers for refrigeration. Marinated mushrooms can be stored in the fridge or even canned in mason jars for longer-term storage in a cupboard.
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Psilocybin, the main psychoactive compound, decomposes over time
Psilocybin, the primary psychoactive ingredient in shrooms, is responsible for the hallucinogenic effects associated with the drug. The compound breaks down over time, and factors like light, heat, and air speed up this process. For instance, within 4-5 weeks, there may be a 7% decrease in psilocybin and a 29% decline in psilocin, another key compound in shrooms.
The rate of decomposition is crucial because it determines the potency of the shrooms. As psilocybin breaks down, the hallucinogenic effects of the mushrooms weaken. This means that older shrooms may result in unintentional trips due to irregular potency. The potency of some strains can fall by 10% in a week, and they may lose their potency faster in warm, bright conditions.
To preserve the potency of shrooms, they should be stored in a cool, dark, and dry environment. Proper drying and storage can extend the shelf life of shrooms from several months to a year or more. Refrigeration can slow down decomposition, but frozen shrooms may become mushy. Dried shrooms should be stored in airtight containers to minimize exposure to air and moisture.
Additionally, the method of consumption also affects the potency and speed of decomposition. Fresh or dried shrooms can be ingested directly, mixed with food, or steeped in hot water or tea. Tea is the fastest method, with effects kicking in as soon as 5-10 minutes after ingestion. Shrooms can also be preserved in honey for up to a year, but the mushroom type and sugar content must be considered.
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Frequently asked questions
Fresh mushrooms are best eaten within 10 days of being harvested. They should be stored in their original container, and then moved to a paper bag after opening. Refrigeration slows down decomposition.
Dried mushrooms stored in a cool, dark, and dry environment can last for months or even years. They should be kept in airtight containers to minimise exposure to air and moisture.
Frozen mushrooms can last for four years or more without losing potency.
Marinated mushrooms can be stored in mason jars for up to a year.























