Freeze-Drying Fundamentals

Freeze-drying is a very gentle dehydration process used for preservation of high quality foods. The history and market for this technology will be reviewed in this month’s column, as will the science. Applications will be discussed as well.

The History and Market
Freeze-drying was invented by Jacques-Arsene d’Arsonval at the College de France in Paris in 1906. Later, during World War II, it was widely implemented to preserve blood serum. Since then freeze-drying has become one of the…