The Mahtab Says

 Canning: Scientific Food Preservation Through Heat Processing and Hermetic Sealing Canning is one of the most important food preservation methods used in the food industry. It is not just the act of packing food into a tin, bottle, pouch, or glass jar. It is a controlled thermal preservation system in which food is filled into a container, sealed properly, heated under a validated process, cooled under hygienic conditions, and stored safely without recontamination. The core idea is simple, but the science behind it is very serious: safe canned food depends on correct pH, correct heat treatment, correct sealing, correct cooling, and complete process records. This blog is based on the canning infographic concept prepared for food technology students, QA officers, food safety inspectors, production staff, and food science educators. What is Canning? Canning is a food preservation method in which food is packed into a hermetically sealed container and processed by heat to destroy ha...

 Food Irradiation: Science, Safety, Dose Control and Real Food Industry Applications Food irradiation is one of the most misunderstood technologies in food preservation. Many people hear the word “radiation” and immediately think of danger, nuclear accidents, or radioactive food. In reality, food irradiation is a controlled food processing method used to improve food safety, reduce microbial load, control insects, delay sprouting, and extend shelf life. For food science students, food technologists, quality assurance professionals, and regulatory officers, irradiation should not be seen as a mysterious or frightening process. It should be understood as a science based preservation and safety tool, just like pasteurization, drying, freezing, canning, modified atmosphere packaging, or high pressure processing. The key difference is that irradiation works mainly through ionizing energy rather than heat. International organizations including WHO, FAO, IAEA, Codex Alimentarius, and FD...

 Pasteurization in Milk Processing: A Complete Food Safety Control System Pasteurization is one of the most important food safety operations in the dairy industry. Many people understand it only as “heating milk,” but in real processing it is much more than that. Pasteurization is a validated control system that combines raw milk inspection, process standardization, exact time and temperature control, holding time validation, flow diversion, cooling, hygienic packaging, verification testing, record review, and cold chain management. The purpose is simple but critical: protect public health while maintaining the natural quality, taste, nutrition, and shelf life of milk. Pasteurization is not sterilization. It does not destroy every microorganism. Instead, it is designed to destroy pathogenic microorganisms and reduce spoilage organisms to a level that makes milk safe when handled under controlled chilled conditions. For this reason, pasteurized milk must still be stored under refr...