What Dutch law allows
The Dutch addiction service Jellinek sets out the position. Psilocin and psilocybin are on List I of the Opium Act. Mushrooms that contain them have been on List II since December 2008, and dried mushrooms fall under List I. Truffles are sclerotia, not mushrooms, so fresh truffles are not covered by the Opium Act. The status of dried truffles has not been settled in law; the Jellinek classes them as List I.
The Dutch Supreme Court started from the same position in a tax case decided on 10 April 2026. The established facts record that magic truffles fall outside the Opium Act and may be grown and traded freely; the case itself was about which VAT rate applies to them.
| In the Netherlands | Status |
| Fresh magic truffles | Legal to sell, buy and possess |
| Dried magic truffles | Not settled; the Jellinek classes them as List I |
| Fresh magic mushrooms | Opium Act, List II, since December 2008 |
| Dried magic mushrooms | Opium Act, List I |
| Driving after use | Prohibited |
Buying them
Shops sell truffles only to adults; Dutch-Smart's truffles are for people aged 18 and over. Dutch-Smart ships with PostNL within the Netherlands, including to pick-up points, and orders placed before 16:00 on a weekday are sent the same day (shipping information). That makes it possible to order for an address where you are staying, such as a rented flat, as long as you can receive the parcel.
Truffles are fresh and perishable. Dutch-Smart advises storing them unopened in the fridge at 2 to 4 °C until the expiry date and using them soon after opening. Plan the order so that you use them during the stay and do not end up with leftovers on the last day.
The truffle guide orders the full range by the strength the shop gives for each one.
Using them during your stay
Jellinek gives these timings: effects begin 30 to 60 minutes after taking them, are strongest in the first two hours, and wear off after 4 to 6 hours. It describes the main risk as a frightening or overwhelming experience, and warns that people who have had a psychosis can relapse. A few practical points follow from that:
- Use them somewhere you can stay for the whole day. Dutch-Smart advises having a sober person present who is not taking anything.
- Do not plan to travel, cycle or drive. Dutch law prohibits taking part in traffic under the influence, and Jellinek notes you can feel hazy for some time afterwards.
- Dutch-Smart's product information advises against combining truffles with cannabis, and also lists lithium, SSRIs and MAO inhibitors as combinations to avoid.
- In an emergency in the Netherlands, call 112.
Going home: nothing comes with you
Truffles contain psilocybin, an ester of psilocin, so in UK law they are "fungus (of any kind) which contains psilocin or an ester of psilocin": a Class A drug.
- Carrying them through the border is importing a controlled drug, banned by section 3 of the Misuse of Drugs Act 1971. Knowingly evading that ban is an offence under section 170 of the Customs and Excise Management Act 1979, with a maximum of life imprisonment for a Class A drug.
- Posting them to yourself is the same import offence.
- Having them in the UK after the trip is possession of a Class A drug, with a maximum of 7 years.
- Giving leftovers to a friend at home is supply, with a maximum of life.
GOV.UK lists controlled drugs among the goods you cannot bring into the UK, and there is no personal allowance. Drying truffles to make them last longer does not help either: in the Netherlands the Jellinek classes dried truffles as a List I drug, and in the UK they are Class A in any form.
The safe plan is to buy only what you will use, use it during the stay, and dispose of anything left over before you leave.
Countries on the way
Truffles are legal in the Netherlands because of Dutch law, and the neighbours do not all share it. In Germany, for example, psilocybin and psilocin are listed in Annex I of the Narcotics Act (BtMG). A trip home by road or rail may cross other countries, and whatever you carry is covered by the law of each one.
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