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Food science including the processing and preservation aspects is an interdisciplinary subject involving topics from chemistry, microbiology, engineering operations and technological processes. These topics need an interactive approach to enable one to gain a proper perspective and insight into the subject. The fast emerging food biotechnology, involving the use of genetically modified foods and food products, has become controversial even though the use of micro-organisms and microbial products in food processing has been in practice for centuries. The third volume of Handbook of Food Processing Technology deals with engineering and environmental aspects in food processing, and is divided into four sections. Section I deals with heat and mass transfer of food products. Section II focuses on measurement and control in food processing industry. Food processing is a vast sector of the industrial world. A major percentage of the cereals, vegetables and fruits are processed for human consumption and preserved for future use. The specifications of ingredient materials for best results are termed standards. Setting a standard for ingredient material requires vast experience in handling, and the manufacturer might set his own specifications. Considering this, the section focuses on process, instrumentation and control and describes measurements in food processing industry. Section III takes up environmental aspects. Effluents from food and allied industries are considered to be close to domestic sewage since they mainly contain biodegradable material and suspended solids. Hence, treatment of such wastes was never felt as a difficult task. A major shift in the approach, as far as treatment of such wastes is concerned, has been the use of anaerobic technology instead of aerobic one. The section elucidates on treatment of seafood processing waste and treatment of meat and poultry wastes; potato waste-water treatment; soft drink waste treatment; bakery waste treatment; and treatment of cereals, pulses, edible oil wastes and dairy effluents.