How to Test for Poisonous Mushrooms?

Poisonous mushrooms often have an unpleasant, acrid smell, while benign ones smell refreshingly mushroomlike. You can also get information by cutting off the stem and placing the cap on a piece of paper gill-side down for a few hours to get a spore print. A white spore print is a telltale sign of an Amanita species.

How can you tell if a mushroom is poisonous?

DO NOT BUY PARASOL SHAPED (UMBRELLA-SHAPED) MUSROOMS: Avoid picking mushrooms that are in the shape of an umbrella and has white rings around the stem. These parasol-shaped mushrooms, which are also bright in colour, may be Amanitas mushrooms that are full of nature's deadliest poison.

How do you test a mushroom?

The Meixner test (also known as the Wieland test) uses concentrated hydrochloric acid and newspaper to test for the deadly amatoxins found in some species of Amanita, Lepiota, and Galerina. The test yields false positives for some compounds, such as psilocin.

Elena Rostova

Elena Rostova

Lead Health, Wellness & Medical Journalist

Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.