How to dry wild mushrooms safely

Dry only a verified collection

Obtain a VAPKO control while specimens are complete and identifiable, before slicing or drying changes their structure. Keep each approved lot separate and label it with the collection and control information. MycoRadar never confirms presence or edibility, and an image match cannot authorise preservation for food. Do not include fragments whose origin is uncertain. Drying concentrates and transforms material, which makes later visual identification harder rather than easier, so every safety decision must precede the process.

• Use only complete material checked before processing.
• Keep species and collection lots separate.
• Remove every unidentified fragment.
• Label the lot before slicing or drying.

Follow validated equipment guidance

Prepare clean, sound specimens using a food-safe method suited to the actual species and appliance, following official guidance and the manufacturer's instructions. This page deliberately avoids a universal time or temperature because equipment, slice size, species and conditions differ. Arrange material so that the chosen method can work consistently, and protect it from contamination during handling. Do not improvise with an unsuitable heat source or assume that a crisp appearance alone proves safe processing.

Label and inspect the finished lot

Keep dried collections in clean, suitable food containers with clear labels so they cannot be confused with decorative, study or unknown specimens. Record what was checked, when it was collected and which lot it came from. Inspect for moisture, damage or contamination before storage and again before use. If the result or history is questionable, discard it. Do not merge leftovers from different outings simply because their dried pieces look similar, since diagnostic appearance may have been lost.

Remember that drying does not neutralise every hazard

Drying is not an edibility test and cannot rescue an uncertain identification. If dried food may have caused poisoning, reach Tox Info Suisse in Switzerland at 145; use 144 when life is threatened. Do not provoke vomiting. Keep the dried remnants, original label, photographs and collection log for specialist assessment. VAPKO should have examined the fresh, complete specimens before processing, because fragments may no longer retain enough evidence for a reliable control.