This document discusses food processing and sensory evaluation of food. It describes the three levels of food processing - primary, secondary, and tertiary - and provides examples of each. Primary processing makes raw foods edible, secondary processing creates familiar foods from ingredients, and tertiary processing produces ready-to-eat foods. Food processing provides benefits like preservation, distribution, and consistency, but can decrease nutrients and introduce health risks from additives. Sensory evaluation is important for the food industry to develop new products, cut costs, ensure quality and product acceptability, and for quality assurance.