食品凍干機是食品真空冷凍干燥機簡稱.是凍(dong)干技術在食品加工干燥應用。利用升(sheng)華原理(li)把食品在低溫(wen)冷凍(dong)和真空環境(jing)下干燥處理(li)，得(de)到含水5%以內的(de)凍(dong)干(gan)(gan)食品。因為凍(dong)干(gan)(gan)處理后的(de)食品保存了原有(you)的(de)顏色、形狀和營養成分，具(ju)有(you)復水性(xing)，密封后常溫下保存多年(nian)，方便存儲和運輸的(de)特(te)點，具(ju)有(you)保存天然(ran)、無添(tian)加的(de)營養健康(kang)凍(dong)干(gan)(gan)食品，廣(guang)泛應(ying)用(yong)于各種食品真(zhen)空冷凍(dong)干(gan)(gan)燥深(shen)加工。

      食品凍干機的(de)(de)(de)工作原理是(shi)通過水的(de)(de)(de)液態、固態、氣(qi)態三種狀態在不(bu)同(tong)溫度(du)，不(bu)同(tong)真空(kong)環境下相互轉換(huan)變(bian)化。食(shi)品(pin)(pin)(pin)凍(dong)干(gan)機(ji)的(de)(de)(de)工作流程是(shi)，把(ba)提前洗(xi)切(qie)好(hao)的(de)(de)(de)食(shi)品(pin)(pin)(pin)進入凍(dong)干(gan)機(ji)進行(xing)低溫預凍(dong)成固態，然(ran)后食(shi)品(pin)(pin)(pin)凍(dong)干(gan)機(ji)的(de)(de)(de)倉體(ti)形成真空(kong)環境，食(shi)品(pin)(pin)(pin)物料在真空(kong)環境下進行(xing)升(sheng)(sheng)華，根(gen)據物料的(de)(de)(de)特性(xing)要(yao)求進行(xing)加熱，讓升(sheng)(sheng)華速率根(gen)據要(yao)求運行(xing)，達到食(shi)品(pin)(pin)(pin)物料除(chu)去(qu)水分的(de)(de)(de)目的(de)(de)(de)。凍(dong)干(gan)后的(de)(de)(de)食(shi)品(pin)(pin)(pin)呈海綿狀、無干縮(suo)、復水性好(hao)，同時保存(cun)食品原有的色、香、味(wei)和營養成分基本不變。

食品凍干(gan)機設備廣(guang)泛應用于：果蔬凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、肉類凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、海鮮凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、米飯(fan)凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、米粉凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、花卉(hui)凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、茶(cha)葉凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、咖啡凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、奶制品(pin)(pin)(pin)凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、益生菌凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、中(zhong)藥材凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、提取物凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、果汁凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)、保健食(shi)品(pin)(pin)(pin)凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)等食(shi)品(pin)(pin)(pin)處理。因為食(shi)品(pin)(pin)(pin)凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)機設備擁有很多(duo)其(qi)他(ta)傳統干(gan)(gan)燥加工無法達到的(de)優(you)點，所以很多(duo)企(qi)業紛(fen)紛(fen)轉型或者投入食(shi)品(pin)(pin)(pin)真空冷凍(dong)(dong)(dong)(dong)(dong)干(gan)(gan)燥機設備生產線，進行FD食品(pin)加工。