The Role of Humidity in Shelf Life Estimation: A Toy Example Riccardo Ceccato, University of Padova; Rosa Arboretti, University of Padova; Elena Barzizza, Università degli Studi di Padova; Marta Disegna, University of Padova; Luca Pegoraro, University of Padova; Luigi Salmaso, University of Padova; Nicolò Biasetton, University of Padova