High pressure processing (HPP) is non-thermal processing which has been applied in the food industry
mainly as a post-packaging pasteurization method in order to ensure food safety with minimal effects
on nutritional and sensorial profiles and thus to obtain enhanced “freshness” of preserved foods. The
present chapter is a brief comprehensive review of the thermodynamic aspects under high pressure
conditions and the HPP effect on microbial inactivation and food matrix. Up-to-date industrial HPP
equipment and commercial HPP food products are presented. The combination of HPP and eBeam
technology is discussed as a method of hurdles addition for an optimized preservation.