Can You Eat Amanita Muscaria? The Parboiling Tradition, Examined

Can you eat Amanita muscaria? People have, for centuries. In parts of Russia, Lithuania, France and Japan, fly agaric was boiled, the water was thrown away, and the mushroom was eaten as food. A 2008 paper argued that field guides ignored this on cultural grounds. But before you read on, here's what isn't established: no peer-reviewed study has measured what's left in a mushroom after any home parboiling method. We don't recommend it, and we don't sell fly agaric as food.

Our fly agaric products are sold as dried botanical material, not as food. For what the compounds do when they aren't removed, see our ibotenic acid versus muscimol guide.

Is Amanita Muscaria Edible or Poisonous?

Raw, it's poisonous. Ibotenic acid and muscimol cause vomiting, confusion, agitation and deep sedation, and serious cases need intensive care. A 2022 US report described a fatal case after four to five dried caps (Meisel 2022). Field guides call it poisonous for good reason.

The same report included a second patient, a 75-year-old man who ate a single large cap he'd foraged by mistake. He developed hallucinations, then lethargy, and needed a breathing tube before making a full recovery. One cap, eaten by mistake, was enough to put him in intensive care. That's the baseline any edibility argument has to beat.

The argument for edibility is narrower. It says the poisons are water-soluble, so thorough boiling with the water discarded leaves a mushroom with little of either compound. In 2008, the writer William Rubel and the mycologist David Arora made that case in Economic Botany. They argued that English-language field guides labelled fly agaric poisonous without engaging with a long record of it being eaten after parboiling.

Both statements can be true at once. A raw fly agaric is toxic. A properly parboiled one may not be. The trouble is the word "properly", which nobody has ever defined with a lab measurement you can repeat at home.

Where Was Fly Agaric Eaten as Food?

Rubel and Arora collected reports from the European, Russian, North American and Japanese countryside. Nineteenth-century sources described it being eaten in northern Russia after boiling and washing, and the practice of boiling "poisonous" mushrooms and draining them was common in Russia and Lithuania.

The best modern account comes from Japan. Rubel and Arora cite Alan Phipps's 2000 research in the town of Sanada in Nagano Prefecture. There, fly agaric was boiled and then stored in salt, and Phipps reported no detectable muscimol or ibotenic acid after that treatment. Phipps also documented two other local methods, grilling and drying, which do the opposite: they convert some ibotenic acid into muscimol rather than removing it.

That detail matters more than it seems. "People eat it in Japan" covers both a method that removes the compounds and methods that concentrate them. A tradition isn't one recipe.

What Did 19th-Century Experiments Show?

They showed the toxins go into the water. Rubel and Arora describe the French physician Pouchet boiling five fly agaric caps per litre of water for 15 minutes. Dogs fed the broth died. Dogs fed the boiled caps without the broth did well, and one fed boiled caps for two months gained weight.

Another Frenchman, Gérard, experimented on himself and his family in 1851. His method soaked cut mushrooms in acidulated or salted water for two hours, washed them, then boiled them for half an hour before use. It was reprinted in English medical journals and cited in toxicology texts for decades.

Those were bold experiments, and they make a clear point about solubility. They aren't modern evidence, though. Nobody measured residual compounds, the mushrooms weren't checked for potency, and dog studies don't translate neatly to people.

What Does Modern Chemistry Say About Boiling?

It supports the solubility part and adds a warning about time. Tsunoda and colleagues found in 1993 that boiling or soaking fly agaric released most of its ibotenic acid and muscimol into the water rapidly. They also found that general cooking within about ten minutes hardly reduced the compounds.

Put those together and you get the logic of parboiling: lots of water, enough time, and the water poured away. Cut any of those corners and the logic fails. A quick sauté keeps the compounds in the pan. A small pot of water reaches saturation sooner. Using the cooking water in a sauce puts everything back. Our decarboxylation guide explains what heat and acid do to the compounds that stay.

Why Isn't Parboiling Enough on Its Own?

Because the biggest risk comes before the pot. Parboiling is meant for fly agaric. It isn't a general detox, and it does nothing for the deadly Amanitas. Rubel and Arora say so plainly: amatoxin-containing species such as the death cap can't be detoxified by any normal cooking.

Misidentification is common in real poisonings. In a US poison-centre review, foraging was the reason for 12 of 34 fly agaric and panther cap cases (Moss 2019). A faded, rain-washed fly agaric can lose its red and its warts. A brown panther cap carries more muscimol per gram. And cooking doesn't fix a mistake: in Finland in 1979, three people who'd cooked royal fly agaric, believing it was a parasol mushroom, were still poisoned (Elonen 1979).

There are also things parboiling can't tell you. How potent was this mushroom to begin with? Fly agaric caps varied from 46 to 1,052 ppm muscimol in one study (Tsujikawa 2006). Was the pot big enough, the slices thin enough, the time long enough? Without a lab test, you're trusting a tradition you weren't raised in.

Does the Law Treat Fly Agaric as Food?

In the US, no. In December 2024, the FDA stated that Amanita muscaria, its extracts, muscimol, ibotenic acid and muscarine are not authorised for use in conventional food and don't meet the GRAS safety standard. Food containing them is considered adulterated. That followed a 2024 outbreak linked to mushroom-labelled edibles, with 180 illnesses reported in 34 states.

Rules differ elsewhere, and food law is often the regime that actually applies. Our legal status guide explains how to check your own jurisdiction. We sell fly agaric as a dried botanical, not as a food product, and nothing in this article changes that.

What Should You Take From the Tradition?

A respect for solubility, and a healthy suspicion of shortcuts. The historical record shows that water carries fly agaric's compounds away, and that people learned to use that. It doesn't show that any particular kitchen method is reliably safe, and nobody has published the measurements that would.

If your interest is cultural or historical, our articles on fly agaric in folk medicine and Siberian shamanism pick up other threads of the story. If you're tempted to cook a wild one, please don't treat this article as permission. The poisoning symptoms guide lists the signs that need urgent help.

Frequently Asked Questions

Can you eat Amanita muscaria if you boil it?

Historical sources say people did, after boiling and discarding the water. A 1993 study found boiling released most ibotenic acid and muscimol into the water rapidly. But no peer-reviewed study has validated a home recipe, and misidentification remains the main danger. We don't recommend it.

Does cooking Amanita muscaria remove the toxins?

Not quick cooking. Tsunoda's 1993 study found general cooking within about ten minutes hardly reduced the compounds. Only prolonged boiling in plenty of water, with the water thrown away, removes much of them, and even that has never been measured for a home method.

Where is Amanita muscaria eaten?

Reports come from Russia, Lithuania, France, North America and Japan. The best documented case is Sanada in Nagano Prefecture, where it was boiled and salted. Research there reported no detectable muscimol or ibotenic acid after that treatment, while grilling and drying increased muscimol.

Is the cooking water dangerous?

Yes. It carries most of what was removed. In 19th-century experiments, dogs fed the broth from boiled fly agaric died, while dogs fed the drained caps did well. Never drink the water, use it in cooking or give it to animals.

Is Amanita muscaria legal to sell as food?

Not in the US. In December 2024, the FDA said fly agaric and its compounds aren't authorised for use in conventional food and don't meet the GRAS standard. Rules vary elsewhere. We sell it only as a dried botanical, not as food.

Related Articles

• Is Amanita Muscaria Poisonous?
• Amanita Muscaria Decarboxylation
• Ibotenic Acid vs Muscimol
• Amanita Muscaria Safety Checklist
• Fly Agaric in Folk Medicine

Sources

1. Rubel W, Arora D. A study of cultural bias in field guide determinations of mushroom edibility using the iconic mushroom, Amanita muscaria, as an example. Economic Botany. 2008;62(3):223-243. doi:10.1007/s12231-008-9040-9
2. Tsunoda K, Inoue N, Aoyagi Y, Sugahara T. Change in ibotenic acid and muscimol contents in Amanita muscaria during drying, storing or cooking. J Food Hyg Soc Jpn. 1993;34(2):153-160. doi:10.3358/shokueishi.34.153
3. Meisel EM, Morgan B, Schwartz M, Kazzi Z, Cetin H, Sahin A. Two cases of severe Amanita muscaria poisoning including a fatality. Wilderness Environ Med. 2022;33(4):412-416. PubMed 36210279
4. Moss MJ, Hendrickson RG. Toxicity of muscimol and ibotenic acid containing mushrooms reported to a regional poison control center from 2002-2016. Clin Toxicol (Phila). 2019;57(2):99-103. PubMed 30073844
5. Elonen E, Tarssanen L, Härkönen M. Poisoning with brown fly agaric, Amanita regalis. Acta Med Scand. 1979;205(1-2):121-123. PubMed 760400
6. Tsujikawa K, Mohri H, Kuwayama K, et al. Analysis of hallucinogenic constituents in Amanita mushrooms circulated in Japan. Forensic Sci Int. 2006;164(2-3):172-178. PubMed 16464551
7. US Food and Drug Administration. FDA alerts industry and consumers about the use of Amanita muscaria or its constituents in food. December 18, 2024. fda.gov