section_path: Modern industrial techniques/Freeze drying
section_name: Freeze drying
paragraph_text: Freeze drying
  
  Freeze drying, also known as lyophilization or cryodesiccation, is a low temperature dehydration process that involves freezing the product and lowering pressure, thereby removing the ice by sublimation. This is in contrast to dehydration by most conventional methods that evaporate water using heat.