?? Drying process material deformation, no cracking, no color, no bad, no oxidation, dry thoroughly, dried rehydration, less loss of nutrients, long shelf life, more effective protection of dry matter than any conventional drying equipment color, smell, taste, shape and individual active ingredients. A closed loop mode applies dry inert dry environment? (Nitrogen, carbon dioxide, argon, helium), suitable for flammable and explosive materials, hazardous and toxic materials, materials with a pungent odor, easy oxide material, such as volatile aroma to be recovered material components. ?