Magic truffles vs mushrooms: the key differences

Magic truffles vs mushrooms: what is the difference? Both come from the same kind of fungus and both contain psilocybin, but they are different parts of it. Magic mushrooms are fruiting bodies, with a stem and a cap, that grow above ground to release spores. Magic truffles are sclerotia: compact, knobbly masses of mycelium that form underground as a reserve. In the Netherlands the difference also has a legal side: fresh and dried psilocybin mushrooms have been prohibited since 2008, while truffles are not covered by that ban. Below, we compare them point by point, with a summary table and a short FAQ.

Magic truffles vs mushrooms: the short answer

• Same organism, different part. A mushroom is the fruiting body of the fungus; a truffle is a sclerotium, a dense storage structure.
• Same active compounds. Both contain psilocybin and psilocin, the compounds behind their effects. In both, the amount varies naturally.
• Different legal status in the Netherlands. Mushrooms have been prohibited since 2008; truffles have not.
• Different form. Mushrooms are usually dried; truffles are sold fresh.
• Not comparable gram for gram. A gram of fresh truffle and a gram of dried mushroom are not the same thing.

Biology and appearance: fruiting body or sclerotium?

Most of a fungus is invisible: it lives as mycelium, a network of fine filaments spreading through soil, wood or another growing medium. A mushroom is only one of the forms it can take.

Mushrooms: the fruiting body

A mushroom is the fruiting body of the fungus, called a carpophore in botany. It is the reproductive part: it appears above ground for a short time, when conditions are right, and releases spores from the gills under its cap. Psilocybe cubensis is the best-known psilocybin mushroom species.

Truffles: the sclerotium

Some Psilocybe species, including Psilocybe mexicana and Psilocybe tampanensis, can also form sclerotia. A sclerotium is a hardened mass of mycelium that develops underground or within the growing medium. It is not a fruiting body and produces no spores. Its role is closer to that of a reserve: it stores nutrients and helps the fungus get through dry or cold periods until it can grow again.

Despite the name, magic truffles have nothing to do with culinary truffles, which belong to a completely different group of fungi.

What they look like

The two look nothing alike.

• Mushrooms have a thin stem and a cap, often brown to golden, with darker gills underneath. Fresh, they are fragile and spoil quickly, which is why they are so often dried, making them light and brittle.
• Truffles are small, irregular, knobbly lumps, usually beige to light brown, firm and slightly moist when fresh. They are sold whole.

Truffles are often described as tasting earthy, nutty or slightly bitter. Opinions vary, and some people simply find the taste unpleasant.

Legal status: why truffles are legal in the Netherlands and mushrooms are not

This is the difference that matters most in practice. In the Netherlands, fresh and dried psilocybin mushrooms have been on the list of prohibited substances since 2008, while truffles are not covered by that ban. The Dutch government added hallucinogenic mushrooms to the lists of the Opium Act (Opiumwet) after public debate about incidents linked to their use. The measure targeted the mushrooms themselves; truffles, being sclerotia, remained outside it. You can read the law on the official Dutch legislation portal (Opiumwet), and the Government of the Netherlands explains its drug policy in English.

This is why truffles are still sold legally in the Netherlands, to adults only, and why BIEN works exclusively with truffles: Psilocybe mexicana sclerotia grown in Alphen aan den Rijn, in the Netherlands.

Outside the Netherlands, the picture is different. Psilocybin is a controlled substance in most European countries, and the status of truffles varies from one country to another. The European Union Drugs Agency (EUDA) publishes information on drug laws in Europe. A product that is legal in the Netherlands does not become legal elsewhere because it was bought there: check the law of the country where you live, and never take truffles across a border.

Microdosing: truffles or mushrooms?

Microdosing means taking a very small amount, meant to stay below the threshold of noticeable effects: no visual changes, no "trip", an ordinary day. If you clearly feel altered, it is not a microdose.

Both contain psilocybin; what differs is their form, their legal status and how easy it is to know what you take.

• Mushrooms are prohibited in the Netherlands, and this article gives no guidance on using them. Their content varies between species, batches and individual mushrooms, and dried and fresh material cannot be compared directly.
• Truffles are sold fresh in the Netherlands, and some sellers portion them in advance. At BIEN, each truffle is pre-dosed at 1 g of fresh truffle, so there is nothing to weigh. For the very first time, BIEN advises half a portion (0.5 g), on a calm day, in the morning. The product and its instructions are described on the PEACE in the Chaos product page.

Same weight, not necessarily the same content

Pre-dosed means the same weight, not an identical amount of psilocybin. Truffles are living products, and their content varies from one truffle to another and from one batch to another. That is one more reason to start with half a portion, and never to take a second portion on the same day.

Are truffles milder than mushrooms?

You will often read that truffles are "milder" or "weaker" than mushrooms. Such statements usually compare grams of fresh truffle with grams of dried mushroom, which is not a like-for-like comparison: fresh truffles contain a lot of water. Content also varies within each category. There is no reliable general rule, which is why a comparison per gram says very little.

Storage: fresh truffles, fragile mushrooms

Truffles are a fresh product too, but a denser and firmer one than a fresh mushroom.

For BIEN truffles, the rules are simple:

• keep them in the fridge;
• keep them in their original packaging, one sealed portion at a time;
• keep them out of reach of children and pets;
• do not eat a truffle that shows mould, smells unusual or feels slimy.

Our guide on how to store magic truffles explains the reasoning behind each rule, and why freezing is generally not recommended.

Magic truffles vs mushrooms: comparison table

	Magic mushrooms	Magic truffles
Part of the fungus	Fruiting body (carpophore)	Sclerotium (compact mass of mycelium)
Where it forms	Above ground	Underground or within the growing medium
Role	Releasing spores	Storing reserves
Appearance	Stem, cap and gills	Small, firm, irregular lumps
Active compounds	Psilocybin, psilocin	Psilocybin, psilocin
Usual form	Often dried	Sold fresh
Status in the Netherlands	Prohibited since 2008	Not covered by the ban, sold to adults
Storage	Fragile when fresh	Fridge, original packaging
Content	Varies naturally	Varies naturally, even at the same weight

What research says, and precautions

Research rarely distinguishes truffles from mushrooms: studies look at psilocybin itself. Scientific interest in microdosing is real, but the data remain preliminary and the results are mixed. In 2021, a self-blinding study led by Szigeti and colleagues found that participants taking placebos reported changes comparable to those taking microdoses, which suggests that expectations play a large role. You can browse the published literature yourself on PubMed.

What people describe, such as feeling a little more present or noticing nothing at all, is subjective and varies from one person to another. None of it can be promised. Unwanted reactions, such as restlessness, tension or unease, are also reported, even at low doses.

Whether it comes from a truffle or a mushroom, psilocybin is not for everyone:

• it is for adults only (18+);
• it is not recommended during pregnancy or breastfeeding, if you or a close family member have a history of psychosis or bipolar disorder, if you have a heart condition, or if you take medication, notably antidepressants and lithium;
• do not drive after taking it, and do not combine it with alcohol;
• microdosing is not a medical treatment: if you have any question about your health, talk to a doctor.

FAQ

Are magic truffles the same as magic mushrooms?

No. They come from the same kind of fungus, but they are different parts of it. Mushrooms are fruiting bodies that grow above ground; truffles are sclerotia, compact masses of mycelium that form underground. Both contain psilocybin.

Are magic truffles stronger than mushrooms?

There is no reliable general answer. Comparisons usually set fresh truffles against dried mushrooms, which is misleading, and content varies naturally in both. The weight of a portion tells you how much truffle you have, not exactly how much psilocybin it contains.

Why are truffles legal in the Netherlands but mushrooms are not?

In 2008, fresh and dried hallucinogenic mushrooms were added to the lists of the Dutch Opium Act. Truffles are sclerotia, not mushrooms, and were not included, so they can still be sold to adults in the Netherlands.

Do truffles and mushrooms contain the same substance?

Yes. Both contain psilocybin and psilocin. The amount differs from one species, batch and specimen to another, which is why grams of one product cannot be converted into grams of another.

Can you microdose with truffles instead of mushrooms?

In the Netherlands, truffles are the legal option and are sold for this purpose. At BIEN, a portion is 1 g of fresh truffle, and the first time we advise half a portion (0.5 g). Elsewhere, check your national law first.