October 2, 2025, 3:47 am | Read time: 3 minutes
The death cap mushroom is considered one of the most poisonous mushrooms in Germany. However, those who think they can easily identify it by its green color are mistaken, explains Gerhard Schuster, a geologist with the German Mycological Society: “The particularly treacherous aspect of the death cap is that it can often appear in a pure white variant.” myHOMEBOOK explains how to truly identify a death cap mushroom and prevent confusion.
What Makes the Death Cap Mushroom So Dangerous
The poisoning process occurs in three phases, according to the German Mycological Society (DGfM). “Relatively slowly, 4–6–24 hours after consumption, it leads to uncontrollable vomiting, cholera-like diarrhea, accompanied by severe abdominal pain,” it states. This phase is followed by a “deceptive recovery” lasting about two to four days. “Afterward, the effects of the severely damaged liver become prominent. Jaundice, liver swelling, and the consequences of liver damage-related blood clotting disorders with stomach and intestinal bleeding,” writes the DGfM.
If poisoning is not treated at all or too late, death can occur within three to ten days, according to the DGfM. Heating offers no solution. Some of the toxins in the death cap mushroom are amatoxins. These are heat-stable, writes the DGfM. Even cooking the mushrooms does not eliminate their toxic effects.
Is It Really the Most Poisonous Mushroom in Central Europe?
The DGfM confirms the assumption that the death cap mushroom is the most poisonous mushroom in Central Europe: “Most fatal mushroom poisonings in Central Europe are due to the death cap mushroom. Consuming just 50 grams of a mushroom fruit body can be fatal. The liver-toxic amatoxins it contains cause multiple organ failure without medical treatment.”
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Please Do Not Confuse Button Mushrooms with the Death Cap Mushroom!
The death cap mushroom can be confused with the meadow mushroom. An important distinguishing feature is the gills. In button mushrooms, the gills are colored. In young mushrooms, they are gray-pink, and in older ones, dark brown. In the death cap mushroom, however, the gills are white, writes the Nature Conservation Association of Lower Saxony. Especially in young mushrooms, there is a dangerous similarity. Schuster recommends: “Those who completely avoid mushrooms with gills and only collect boletes are already safe from deadly poisonous mushrooms.”
If poisoning is suspected, one should immediately visit a hospital. Contacting a poison control center is also recommended. Ideally, some mushrooms are left over, so it can be quickly determined what type of poisoning it is.
How to Identify the Death Cap Mushroom
According to the German Mycological Society, the mushroom has a greenish color that can fade toward the edge. Its cap is initially hemispherical but flattens as it develops, reaching a diameter of up to twelve centimeters. The stem can be up to ten centimeters long and about two centimeters thick. It is also characterized by its smell, reminiscent of artificial honey or a sweet invert sugar cream.