... 8-15hrs Drying temp.50-120C, Vacuum freeze dryer. Working principle,Vacuum freeze dryerAfter pretreatments, the raw materials ... raw materials are to be exposed in a vacuum hot drying pot. Inner moisture of the materials ... , and change it to solid state again. Application, vacuum freeze dryerFruit, vegetable, aquatic, meat, instant foodstuff, ... system excluded69.5117.5125.5 FDG type vacuum freeze dryer