Nowadays many food manufacturers build multi-product production lines, alternately processing plant-based raw materials and animal-derived materials. Fruits and vegetables feature diversified sugar and acid content; fresh meat contains abundant protein and muscle fiber; yogurt belongs to heat-sensitive dairy products with active probiotics. All these materials cannot withstand long-time medium and high temperature heating. Most ordinary drying machines adopt fixed operation parameters, which easily lead to various quality problems during cross-category production. High temperature will cause fruit browning, vegetable nutrient loss, meat protein denaturation and probiotic inactivation in yogurt, and the finished materials are tight and hard with narrow application scope for follow-up processing.
Vacuum freeze drying technology realizes flexible cross-material production for medium-sized factories. The whole dehydration cycle runs under ultra-low temperature and high vacuum without continuous thermal damage to raw materials. After pre-freezing, internal moisture of all materials solidifies into tiny ice crystals and sublimates directly into vapor without liquid precipitation. Cell structure will not shrink or collapse, so all semi-finished products maintain complete shape and natural original texture, with evenly distributed micropores inside tissue.
Our 5㎡ universal freeze dryer is optimized for mixed production of fruits, vegetables, meat and yogurt. The effective shelf area reaches 5 square meters, with uniform radiation heating plates on each layer to ensure consistent temperature of all trays. The PLC intelligent control system pre-stores independent process parameters for vegetable slices, various fruits, meat chunks and yogurt blocks. Operators can switch production modes with one click without repeated parameter debugging, effectively reducing material waste caused by mismatched process curves. The adjustable pre-freezing speed and vacuum balance system solve different processing difficulties of varied raw materials: anti-adhesion for high-sugar fruits, anti-oxidation for leafy vegetables, protein protection for meat, and probiotic activity retention for yogurt.
The whole machine has passed CE certification and fully complies with EU mechanical safety and food machinery standards. The drying chamber is made of thick food-grade stainless steel with rounded dead-corner-free structure, easy to disassemble and thoroughly clean. Separate cleaning and drainage design effectively isolates cross-contamination between plant raw materials, meat and dairy products. The matched refrigeration and vacuum unit adopts energy-saving combined design, with lower unit energy consumption compared with large-scale 10㎡ above equipment, reducing long-term operation costs for medium factories.
For medium comprehensive food processing enterprises with multi-product layout, 5㎡ general freeze dryers achieve a balance between production capacity, equipment investment and daily energy consumption. Factories that need to alternately process fruits, vegetables, meat and yogurt no longer need to purchase multiple sets of special drying machines for different materials, effectively saving workshop space and overall equipment procurement costs.
