What happens when you mix heavy metal and sourdough? You get Axel Schmitt, Germany’s champion bread sommelier and all-around rockstar baker. As a skilled drummer, Schmitt cranked up the volume — literally — by blasting metal music at his sourdough, discovering that the sound waves help the dough rise faster. Turns out, headbanging yeast makes for one hell of a loaf. Who knew baking could be so hardcore?
