Rich, Moist and fresh!. Features: Great baking is always a labor of love. This classic Panettone Italian has been made for hundreds of years using live sourdough mother yeast and lots of time. Madi Panettone is one of the few remaining followers of this great tradition and is made using a specially selected 45 year old live 100% sourdough yeast. Buon Appetito! Enjoy! Roberto Di Gennaro IL Primo Baker.