“Right—the ergot poisoning of St. Anthony’s Fire. They called it the ignis sacer: the ‘holy fire’ that caused the seizures and hallucinations.” “But these guys were professionals,” continues Zarnkow, referring to the prehistoric brewers, “and the ones who knew about medicines and such things could do a controlled contamination of Mutterkorn. So if we’ve had beers for feasting, and beers for medicine, why not this special type of drink? I totally believe we’ve had beers like that before.”