Toxicity
As the common name suggests, the fungus is highly toxic, and is responsible for the majority of fatal mushroom poisonings worldwide. Its biochemistry has been researched intensively for decades, and 30 grams (1 oz), or half a cap, of this mushroom is estimated to be enough to kill a human. In 2006, a family of three in Poland was poisoned, resulting in one death and the two survivors requiring liver transplants. Some authorities strongly advise against putting suspected death caps in the same basket with fungi collected for the table and to avoid touching them. Furthermore, the toxicity is not reduced by cooking, freezing, or drying.
Read more about this topic: Amanita Phalloides