Free online courseDairy and Food Processing Technology: Preservation, Quality and Packaging

Course Description

Food safety starts long before a product reaches your plate. In dairy and food processing, small decisions about heat treatment, storage, hygiene and packaging can make the difference between a nutritious product and one that spoils, loses quality, or becomes unsafe. This free online course helps you understand how milk and other perishable foods are preserved, handled and evaluated so you can make smarter choices in industry settings, labs, small businesses, or everyday life.

You will connect core nutrition concepts with practical processing technology. By exploring what nutrients are and how they contribute to nutritional value, you will better appreciate how processing can protect or reduce quality depending on conditions. The course then moves into preservation thinking: why temperature control matters, how storage influences stability, how additives are defined and used responsibly, and how quality is assessed beyond taste, including texture and physical properties.

A strong focus is placed on milk as a highly sensitive raw material. You will learn why raw milk spoils quickly at ambient conditions, how its constituents behave, and why fat, proteins and carbohydrates respond differently to heat and handling. Concepts like enzyme activity, denaturation and factors that affect microbial growth help explain real outcomes such as souring, curdling, off-flavors and shortened shelf life. These foundations make later processing steps easier to understand and troubleshoot.

The course also links science to real-world controls. You will examine why food laws exist, how standards and hygiene requirements support consistent production, and what compliance means for consumer safety. Finally, you will look at preservation and processing operations central to modern dairy: pasteurization and its verification, thermal death concepts used to design safe processes, homogenization for product stability, centrifugation for separation, and packaging approaches that protect freshness, including modified-atmosphere methods and cold-chain discipline for frozen foods.

By the end, you will have a clearer, more practical picture of how preservation, quality and packaging work together to deliver safe, nutritious dairy and food products—skills that translate into better professional judgment and stronger career readiness in nutrition and food-related roles.