food vacuum freeze drying machine 1,Long shelf life, 2,No shrinking 3,No shape changing 4,Good re-hydration ApplicationFood vacuum ... parts1. pretreatment system2. freezing and drying tank3. heating system4. vacuum system5. refrigeration system6. material conveyor7. control systemMain technical parameters Drying ... Φ2.4*16.6/540360117.5(exclude refrigeration system) food vacuum freeze drying machine