Reportedly, it rained chocolate in Olten, a town located between Zurich and Basel. It happened after a mishap at a Lindt and Sprüngli factory.
The chocolate manufacturer told the press that the chocolate shower was due to a minor defect in the cooling ventilation made for a line of roasted cocoa beans. The chocolate powder was carried away by strong gusts of wind, thus scattering the cocoa dust everywhere around the factory area.