It happens every year. Someone eats poisonous mushrooms and winds up in the hospital—or worse. Then I get well-meaning emails from concerned friends and acquaintances.

This fall a Connecticut woman poisoned her whole family. Reports say the mushrooms she picked in her back yard and fed to her husband and two daughters was the notorious Destroying Angel, Amanita bisporigera (pictured at top). If that’s true, the family got off lucky. Three of them were released from medical care last week with their own livers. A fourth remained in the hospital, and—lucky for her—was being treated with silibinin, an experimental drug widely used in Europe and only recently available in the U.S.

The toxins in deadly Amanitas such as the Destroying Angel and the Death Cap (Amanita phalloides) inhibit cell production in the liver and kidneys. Symptoms often don’t occur until several hours after ingestion and include vomiting and severe abdominal pain, followed by liver and kidney failure, hepatic coma, and death. There is no antidote. Patients are typically treated with charcoal solutions. Silibinin, made from an extract of milk thistle, seems to have antihepatotoxic properties—that is, it protects liver and kidney cells from toxins—and looks to be the most promising cure at the moment.

Great new experimental drugs aside, the best cure is to not eat poisonous mushrooms in the first place! Stories like this scare people. But it’s still possible to enjoy the many pleasures of mycophagy (mushroom eating) without a trip to the hospital and a long recovery. Simply observe foraging’s golden rule: never eat anything that you can’t identify without 100 percent certainty.

To learn the skills of mushroom identification, take a class, join a mycological society, go into the field with a trusted mentor. Learn key field characteristics by studying actual mushrooms with mushroom experts—not by looking at pictures in field guides. Respect the limits of your knowledge. Some species are easy to learn. Chanterelles, porcini, and morels are among our tastiest wild mushrooms and relatively easy to identify. Other species require more skill. Go slow and enjoy the process.

The consequences of blithely nibbling your way through the wild are too grave. For another Halloween mushroom scare fest, read this harrowing account of a near-fatal encounter with the Destroying Angel.

Photo at top by Cornell Fungi.

“Whhhhhhhhhhheeeeeeeeeewwwwwwwwwwwww…” That’s the sound of me chasing the White Rabbit.

And there before me, with a Cheshire Cat grin, is my bespectacled host, holding a platter of not-your-everyday food steaming in the kitchen of the Albion Biological Field Station.

Any trip to Mendocino County can feel like something dreamed up by Lewis Carroll, but when it involves a half-dozen or more species of wild mushrooms that have never met this blogger’s taste buds, including the iconic fly agaric—the pyschoactive mushroom rumored to have inspired some of Carroll’s magical mayhem in Alice in Wonderland—the scene is set for a tea party of Mad Hatter proportion.

But we are not here to do psychedelics. We are here to learn about fungi—and eat. My host is mycologist David Arora, author of the celebrated field guide Mushrooms Demystified. Arora has been a fixture on the mushroom hunting scene for four decades, and for the past 20 years he’s put together a Thanksgiving weekend event in the coastal California town of Albion, just south of Mendocino. Two days of forays are capped by an evening of extensive tasting, with everyone involved in the “woods to plate” drama.

The kitchen is warm with gas burners and camaraderie as each student pitches in to help. Attendees clean, prep, and cook dozens of species of edible mushrooms, including several species I’ve never eaten before: the midnight blue entoloma (Entoloma bloxamii), amethyst laccaria (Laccaria amethysteo-occidentalis), and beefsteak mushroom (Fistulina hepatica), which looks like fillet mignon when sliced open. 

More than any other species, though, Arora is known for serving his guests Amanita muscaria. This practice is not uncontroversial. Amanita muscaria, also known as the fly agaric for its ancient use as a pesticide, is generally considered by English-language field guides to be a dangerous toxic mushroom. It’s been documented as a hallucinogen and used as a drug by social groups as varied as middle-class American hippies and Siberian reindeer herders, and occasionally it’s implicated in deaths, though not directly. In one recent case a victim ate the mushroom for its psychotropic effects and died of hypothermia.

But, as Arora points out in his workshops, Amanita muscaria is also used as food. It turns out the mushroom can be easily detoxified and consumed.

Still, many mycologists object to such teachings. Michael Kuo talks about “Amanita bravado” in his book 100 Edible Mushrooms, suggesting that novices might be tempted to sample dangerous mushrooms out of peer pressure. Arora scoffs at this notion. For him, the use of Amanita muscaria as food is simply a case of scientific research triumphing over prejudice. He cites two main reasons for serving it: First, “to introduce people to the huge menu of edible and delicious mushrooms available if we would but open our minds.”And second, that the classic form of Amanita muscaria—red cap with white warts—is among the easiest of organisms to identify, and while there is risk in preparation, there is no risk in identification. 
As to the risk, he points out that red kidney beans are also quite toxic raw and even more toxic when undercooked, and humans eat numerous other plants and vegetables that require careful processing to be edible (e.g. tapioca and pokeweed).