https://phys.org/news/2018-07-nature-antifreeze-revolutionary-bacteria-cryopreservation.html

The revolutionary method has potential applications within the food industry, organ transportation and medicine—as well as in laboratory research. Bacteria are used in a vast range of processes including food technology (e.g.in yoghurt and probiotics), pharmaceutical manufacturing (e.g. insulin) and enzyme production (e.g. for washing powders) and they are routinely used in research labs to study infection and the fundamentals of living processes.

The traditional approach to preserve bacteria used in nearly every laboratory worldwide is to add glycerol to the bacteria to reduce cold-induced damage during freezing. However, not all the bacteria recover after thawing and the glycerol needs to be removed from the bacteria to enable their growth and usefulness.