Vacuum freeze dryer use very low temperature to dry material from subzero temperature to 30 degrees celsius, usually the whole drying process will be 24-72 hours. Because the most drying process is subzero temperature, after dried the material will save 100% of the original dimension because the drying process is sublimation, nutrient will have very less loss and could save 95%. Vacuum freeze drying equipment is suit to dry high request of shape and nutrient material, it is a high quality with high cost vacuum drying technology. Nasan manufacture food type freeze dryer, pharmacy type freeze dryer, lab scale freeze dryer and home use freeze dryer.
