Food freezing
Food freezing

Food freezing


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About the Book

Dehydration via freezing, also known as freeze-drying or cryodesiccation, is a preservation method that removes water from food and other substances by freezing them and then subjecting them to a vacuum environment. This process results in the conversion of water directly from solid ice to gaseous vapor, bypassing the liquid stage, and leaving the food or substance in a dry, stable state. Water is a vital component for all living organisms, and it is also a critical element in the preservation and storage of food and other perishable substances. It provides a medium for chemical reactions, plays a role in cell structure and function, and helps maintain the stability and texture of food. However, water is also a key factor in the spoilage and degradation of food due to the growth of microorganisms, mold, and enzyme activity. Therefore, finding ways to remove water from food and other organic matter has been a crucial method of preservation throughout history. The idea of dehydration via freezing dates back to ancient civilizations, where people would use the seasonal cold temperatures to freeze and preserve food. This method was found to be successful in preventing spoilage and extending the shelf life of food, especially in regions with harsh climates, where the cold winters could provide a natural means of preservation. However, this method was limited in its effectiveness as the frozen foods still contained a significant amount of water, and the process of freezing and thawing could affect the texture and taste of the food. The development of modern freeze-drying technology began in the 19th century with the work of French inventor and scientist, Nicolas Appert. Appert discovered that by sealing food in airtight containers and exposing them to high heat, he could effectively preserve the food for longer periods.


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Product Details
  • ISBN-13: 9798327619708
  • Publisher Date: 05 Jun 2024
  • Height: 216 mm
  • No of Pages: 34
  • Spine Width: 2 mm
  • Weight: 100 gr
  • ISBN-10: 8327619705
  • Binding: BC
  • Language: eng
  • Returnable: N
  • Sub Title: Benefit of freeze drying food to get a good dehydration result by freeze and dry process
  • Width: 140 mm


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