Comparison of Drying Techniques | National Archives
2016-8-15 · Understanding Differences Between Vacuum Freeze Drying, Conventional Freezing, and Other Drying Methods Vacuum/Freeze-Drying Sometimes called "Freeze-Drying," though technically that is a different, less successful freezing process without use of a vacuum. Don't confuse with simple freezing, a common first step in emergency response that allows time to