Mass, Density, Pores and Porosity: Basic Understanding

This video presents the basic understanding of mass, density, pores and porosity of foods. First different types of pores are clearly explained. Second different types of density, i.e. substance density, material density, particle density, true density, apparent density and bulk density are clearly defined and discussed. Different types of pores are used to define these densities. Third porosity is defined and equations to calculate different types of porosity from density are provided.
Source: Michailidis et al. 2009. Measurement of density, shrinkage and porosity. In: Food Properties Handbook, Second Edition, Rahman, M. S. ed. CRC Press, Boca Raton, FL.