The freeze-drying method is different from the traditional hot air drying methods. The product is basically dried at a temperature below 0°C, that is, the product is frozen. Applying the principle of sublimation for drying. Rapid freezing of the material is achieved in low temperature , and then in a suitable vacuum environment the frozen water molecules will be directly sublimated into water vapor and then escape. The product obtained by drying is called lyophilisate and this process is called lyophilisation.



Detail &model
Fruit and vegetable lemom machine freeze vacuum dryer, The freeze dryer is composed of a refrigeration system, a vacuum system, a heating system and an electrical instrumentation control system. The main components is dry chamber, condenser, refrigeration units, vacuum pumps, heating / cooling devices. Its working principle is to make the material be frozen below a certain temperature, and then under the conditions of the vacuum the solid state of the water (ice) is directly sublimated into water vapor and discharged out to get dry items.