
Psilocybin mushrooms, commonly known as magic mushrooms or shrooms, are a type of hallucinogenic mushroom that contains the prodrug psilocybin, which turns into the psychedelic psilocin upon ingestion. The potency of psilocybin mushrooms varies depending on the species, strain, substrate, cultivator, and environment, as well as the individual mushroom. Psilocybin content typically ranges from 0.5% to 1% of the dried weight of the mushroom, with some species containing higher levels. The method of consumption, individual biology, and dose also influence the potency of the mushroom experience.
| Characteristics | Values |
|---|---|
| Common names | Magic mushrooms, Shrooms |
| Scientific name | Psilocybin Mushrooms |
| Active compound | Psilocybin (prodrug), Psilocin (active compound) |
| Potency | Varies between and within species, typically 0.5% to 1% of dried weight, with a range of 0.03% to 1.78%. |
| Recreational dose | 1.0 to 3.5-5.0 g of dried mushrooms, 10 to 50 g of fresh mushrooms |
| Microdose | <1.0 g of dried mushrooms |
| Low dose | 5 to 10 mg |
| Intermediate dose | 20 mg |
| High dose | 30 to 40 mg |
| Most potent species | P. azurescens, P. semilanceata, P. cyanescens |
| Potency variation | Varies with substrate, cultivator, environment, and strain |
| Potency testing | LightLab 3 Psychedelics Analyzer (PSY) |
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What You'll Learn

The impact of body weight and tolerance
The potency of psilocybin mushrooms varies depending on several factors, including the species, strain, substrate, cultivator, environment, and individual mushrooms within a batch. Even mushrooms of the same strain grown by the same cultivator can exhibit significant variability in potency. This inconsistency in potency poses challenges in determining the appropriate dosage for a desired experience.
Body weight and tolerance play a crucial role in the outcome of the psychedelic experience. The traditional method of measuring grams of dried mushrooms to calculate dosage is imprecise and unreliable, especially considering the unpredictable nature of mushroom potency. Factors influencing potency, such as those mentioned above, can significantly impact the effects felt by an individual.
For example, a person accustomed to consuming a specific dosage of the weakest mushroom strain may unintentionally consume an equivalent amount of the strongest strain, resulting in an experience equivalent to consuming forty times the amount of mushrooms they were used to. This highlights the importance of understanding the impact of body weight and tolerance in mushroom dosing.
To address this challenge, organizations like the Church of Ambrosia have developed dosing calculators and apps that consider factors such as body weight and tolerance. These tools aim to provide precise dosing recommendations for different strains based on their psilocybin content. Additionally, some research studies on psilocybin mushrooms take body weight into account when determining doses, often expressed as milligrams of psilocybin per kilogram of body weight or per 70 kg (the average human weight).
However, it is important to note that individual responses to psilocybin mushrooms can vary greatly, and each psychedelic experience is unique. Factors such as body weight and tolerance interact with the potency of the mushrooms to shape the overall experience. Therefore, it is crucial to prioritize safety when experimenting with psilocybin mushrooms, starting with low doses and gradually increasing the dosage once the effects of the initial dose are understood.
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Potency varies by species
The potency of magic mushrooms varies significantly between species and strains, and even between mushrooms of the same strain grown by the same cultivator. The most potent species are members of the genus Psilocybe, such as P. azurescens, P. semilanceata, and P. cyanescens. However, psilocybin has also been isolated from a dozen other genera, including Panaeolus, Inocybe, Pluteus, Gymnopilus, and Pholiotina.
The most common species of magic mushroom is Psilocybe cubensis, which typically contains 0.63% psilocybin and 0.6% psilocin, or about 1.2% of both combined. However, there is significant variation in different strains of P. cubensis, with the 'Penis Envy' strain considered to be more potent than other strains. Some mushroom varieties, like the Enigma strain, are known to be 1.5 to 2 times stronger than other cubensis strains.
The Panaeolus genus of psilocybin mushrooms is lesser-known but naturally much stronger than the Psilocybe genus. Some varieties within the Panaeolus genus are even more potent than Psilocybe azurescens. The exploration of Panaeolus' potential is still ongoing, with expectations that its potency could be improved three- to four-fold through cultivation.
The potency of magic mushrooms also varies within the same species and can be influenced by factors such as substrate, cultivator, environment, and strain. Individual mushrooms of the same strain grown in the same enclosure can vary in potency by up to 100%. This highlights the need for the mushroom industry to embrace testing to provide a consistent and safe product.
It is important to note that the effects of magic mushrooms can vary greatly from person to person, and each psychedelic experience is unique. Factors such as body weight and tolerance can also impact the outcome of the experience. Therefore, it is crucial to prioritize safety when consuming magic mushrooms, starting with a low dose and gradually increasing the dosage if desired.
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Extraction methods
The extraction process is critical for obtaining psilocybin and psilocin alkaloids from mushrooms, as it directly influences the yield and purity of these psychoactive compounds. The selection of an appropriate extraction method depends on the properties of the metabolites and the solvent's ability to maximise the yield and concentration of the target compounds without altering their chemical structure.
Historically, polar solvents like methanol, ethanol, and hydroalcoholic solutions have been used to extract psilocybin due to its high polarity. On the other hand, psilocin, being less polar, is slightly more soluble in nonpolar solvents. The optimal solvent for psilocybin extraction is methanol acidified with acetic acid or hydrochloric acid, which enhances compound solubility while preventing psilocin degradation. The recommended solvent-to-material ratio is at least 1:100 (m/v), with higher ratios improving compound recovery. The extraction time should be at least 30 minutes, and it can be extended up to 3 hours depending on the mushroom species and solvent system used.
Ultrasonic-assisted extraction (UAE) is recommended as the most effective technique due to its ability to maximise yield through cavitation effects that promote efficient cell wall disruption. Multiple consecutive extractions can also enhance efficiency by increasing compound recovery while maintaining sample integrity.
Before extraction, raw psilocybin fungus, including the mushrooms' caps, gills, stems, and hyphae, is dried, ground, and mixed with a solvent. The solvent used for extraction can be a lower aliphatic alcohol, water, a hydro-alcohol mixture, an acidic hydro-alcohol mixture, or an alkaline hydro-alcohol mixture. After extraction, the slurry is filtered to remove solid residue, and the filtrate is pH-adjusted. The solvent is then partially or completely evaporated, and water is added to form a concentrated slurry. This slurry is standardised to achieve a known concentration of the extracted psychoactive alkaloids. Finally, the standardised slurry is dried to obtain a powdered psilocybin mushroom extract with a precisely defined purity.
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Microdosing
The potency of a single mushroom varies greatly. Psilocybin mushrooms, commonly known as magic mushrooms or shrooms, are a type of hallucinogenic mushroom that contains the prodrug psilocybin, which turns into the psychedelic psilocin upon ingestion. The potency of psilocybin in dried fungi is impossible to predict in the absence of laboratory analysis. Mushrooms of the same strain grown by different cultivators have shown a lack of consistency in laboratory testing. Individual mushrooms of the same strain, grown within the same enclosure, can vary in potency by up to 100%. The potency of psilocybin mushrooms depends on the psilocybin and psilocin content, which can vary significantly between and within the same species.
The Fadiman protocol, initially proposed by Fadiman, is one of the most popular microdosing protocols and involves one day of microdosing followed by two days off. Another popular protocol is the 'Stamets stack', which involves combining microdoses of dried psychedelic mushrooms with Lion's Mane, another mushroom purported to enhance cognitive function, and Vitamin B3 on a dosing schedule of 4-5 days on and 2-3 days off.
There have been some studies conducted on the effects of microdosing psilocybin mushrooms. A double-blind placebo-controlled study investigated the acute and short-term effects of 0.5 g of dried mushrooms on subjective experience, behaviour, creativity, perception, cognition, and brain activity. The reported acute effects were significantly more intense for the active dose compared to the placebo, but only for participants who correctly identified their experimental condition. There were also some small changes towards cognitive impairment. However, there was no evidence to support enhanced well-being, creativity, and cognitive function.
When microdosing, it is important to prioritise safety and start with a low dose. Reactions to magic mushrooms can vary greatly from person to person, and there are many different strains and variables that can determine the effects. It is also crucial to obtain mushrooms from a trusted source and know the species one is consuming.
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Factors affecting potency
The potency of psilocybin mushrooms varies depending on several factors, including the cultivation method, storage conditions, individual physiology, and dosage.
Cultivation Method
The potency of psilocybin mushrooms can vary significantly between different strains of the same species and even within the same strain grown by the same cultivator. Factors such as substrate, cultivator, environment, and strain can influence the psilocybin content in dried mushrooms. The 'Penis Envy' strain of Psilocybe cubensis, for example, is considered more potent than other strains. Additionally, mushrooms of the same strain can vary in potency by up to 100%, even when grown in the same enclosure.
Storage Conditions
Mushrooms are sensitive to temperature, humidity, and light exposure, which can affect their potency over time. High temperatures and exposure to light, especially direct sunlight, can accelerate the degradation of active compounds, reducing their potency. Therefore, it is essential to store mushrooms in a cool, dark, and dry place, preferably in airtight containers, to maintain their freshness and efficacy.
Individual Physiology
The effects of psilocybin mushrooms can vary widely between individuals due to factors such as body weight, mental state, personality, and immediate environment. A person's mental health, setting, quantity consumed, and expectations can also influence their experience. Additionally, an individual's tolerance and any medications they are taking can impact the potency of the mushrooms.
Dosage
The potency of psilocybin mushrooms is closely linked to the dosage consumed. Psilocybin content in dried mushrooms typically ranges from 0.5% to 1% of their weight, with recreational doses ranging from 1.0 to 5.0 grams. However, the effects can vary from mild to intense, depending on the individual's sensitivity and the specific mushroom strain. Microdosing, or consuming less than 1.0 gram of dried mushrooms, can provide a less intense experience while still offering potential therapeutic benefits.
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Frequently asked questions
The potency of a mushroom varies depending on the species and strain. The most common method of determining potency is by measuring the weight of dried mushrooms. However, this method is imprecise and can be unpredictable. Laboratory analysis is required to accurately determine potency.
The potency of a mushroom is influenced by various factors such as the substrate, cultivator, environment, and strain. Even mushrooms of the same strain grown by the same cultivator can exhibit significant variability in potency.
The dosage of psilocybin-containing mushrooms depends on the psilocybin and psilocin content, which can vary between and within species. Lower doses are typically recommended for initial consumption, with the option to gradually increase the dose once the effects of the original dose are understood.
Yes, consuming mushrooms with unknown or unpredictable potency can be risky. Accidental consumption of a high-potency mushroom may result in an unintentional overdose or adverse effects. It is crucial to prioritize safety and only obtain mushrooms from trusted sources.
The potency of a mushroom determines the intensity of its psychedelic effects. Higher potency mushrooms tend to have smoother effects on the body, while lower potency mushrooms may cause unpleasant physical sensations or "body load" issues. Individual factors such as body weight and tolerance also influence the overall experience.

























