Freeze-drying: Four-stage cascade provides temperatures from -70 to +85 °C

Freeze-drying: Four-stage cascade provides temperatures from -70 to +85 °C

Sophisticated plant technology At NaProFood GmbH & Co. KG in Bruckberg, a refrigeration system is in operation that is probably unique throughout the world. Four refrigeration circuits with four different refrigerants are connected in a cascade system and provide...