Deadly morel mushroom outbreak highlights big gaps in fungi knowledge
A foodborne illness outbreak at a Montana sushi restaurant, linked to dishes containing raw or undercooked morel mushrooms and resulting in two deaths, has raised questions about both restaurant food safety and how well mushroom toxins are understood. Commenters note that experienced foragers widely treat morels and many other mushrooms as unsafe when raw, yet regulators still have not pinpointed a specific causative toxin in this case despite testing. The exchange broadens into concerns over raw mushroom consumption in general, regional limits of foraging knowledge, the role of handling and storage, and emerging treatments for severe mushroom poisoning.
General reactions & pop‑culture framing
- Several commenters link the incident to fungal horror fiction (e.g., “The Last of Us,” other fungus‑centric books), treating it as darkly humorous but also unsettling.
- Some feel the article oversells novelty; to them, the core hazard (raw/undercooked morels) is long‑known, so the “big gaps” framing seems overstated.
Raw vs cooked mushrooms
- Multiple comments stress a basic rule: never eat morels raw; they’re considered poisonous unless thoroughly cooked.
- Broader advice appears: avoid raw mushrooms in general, although cultivated button/cremini are widely eaten raw in salads.
- There is debate about health risks:
- One side: raw button mushrooms contain hydrazines/agaritine (carcinogenic in rodents) and nutrients are locked in chitin, so cooking is preferable.
- Others push back: evidence is rodent‑based, doses are high, and risks may be smaller than other common food carcinogens (e.g., acrylamide in fried foods).
The outbreak and restaurant practices
- Some remain unconvinced the morels were the true cause, pointing to poor inspection records and possible mishandling of fish or cross‑contamination.
- Others note the investigation’s epidemiology narrowed the culprit to morels served in specific dishes and on specific days.
- It’s emphasized that the morels were imported, partially cooked or raw‑marinated—preparations experienced foragers describe as “ridiculous” and contrary to standard guidance.
- It is noted that two people died and many were hospitalized, so dismissing it as routine food poisoning is disputed.
Foraging, individual sensitivity, and alcohol
- Foragers report:
- Some otherwise “edible” mushrooms cause severe reactions in a minority of people.
- Rule of thumb: try very small amounts (with progressive exposure) when eating any new wild species.
- Some advise against mixing foraged mushrooms with alcohol; certain species interact badly with ethanol, and liver load is a concern.
Activated charcoal and food poisoning
- One commenter strongly endorses activated charcoal at first signs of food poisoning, citing dramatic personal anecdotes.
- Others note:
- Its effectiveness, especially for infections vs toxins, is debated in the literature.
- Some see it as no better than placebo; overall efficacy is described as “hotly debated.”
Other mushroom toxicology notes
- Mention of hydrazines in morels and false morels; older “edible with special prep” guidance for false morels is said to have shifted to “inedible.”
- A recent study is cited on a dye (indocyanine green) as a potential antidote for alpha‑amanitin (death cap) poisoning.