Food Process engineering has become an important branch of applied engineering. Since post harvest processing is gaining impetus in our country, concepts ofbasic food structures and their processing are essential. Enormity of foodswith their diverse as well as specific unique characteristics demands special processing treatments. At the same time being biological commodities, their processing needs to meet the safety requirements as well. This course has been designed to impart the fundamental concepts of Food rheology, as well as thermal/non-thermal processing of foods. Drying being the most common technique followed for food preservation, a detailed discussion on drying has been incorporated. Food freezing has been covered and finally few important unit operationsof food engineering are discussed. A glimpse of non-thermal processing (High pressure processing, Pulsed electric field etc.) has also been included in the course.