0 to preserve something, especially food, by freezing and then drying it -- 冻干保存，冷冻干燥保存（尤指食物）
freeze-dried coffee 冻干保存的咖啡
Shortly thereafter, the freeze-dry process was applied to penicillin and bone, and lyophilization became recognized as an important technique for preservation of biologicals.
Larger crystals are easier to freeze-dry.
The silicon chips with embryos were then kept under liquid nitrogen until they were freeze-dried at liquid nitrogen temperature under vacuum.
It is not just about having nice hygienic conditions of freeze-drying for horticultural products.
