All contact parts including drying chamber, material trays and internal pipelines of food processing freeze dryer adopt food-grade stainless steel, and 304 stainless steel is the mainstream material for all freeze drying machine used for fruits, meat, aquatic products and spices.
Ordinary industrial freeze dryer specially for food lyophilization uses polished 304 stainless steel without dead cleaning corners, so residual fruit pulp, meat residue and spice powder can be fully flushed after each freeze-drying batch.
Bench-top freeze dryer for food laboratory trial also uses full 304 stainless steel contact surfaces, avoiding rust and metal contamination when processing acidic fruits, pickled meat slices and sour herbal extracts.
304 stainless steel vacuum freeze dryer resists daily water cleaning and regular high-temperature disinfection, no harmful substance precipitation during long-term continuous food freeze-drying and lyophilization production.
Low-quality carbon steel or non-food grade metal lyophilizer will oxidize and rust after contacting fruit acid, fish oil and plant spice essential oil, causing food safety risks for finished freeze-dried products.
All our freeze dryer and industrial lyophilizer for food raw material processing fully adopt food-safe 304 stainless steel for material contact components, meeting global food processing hygiene and safety standards.
