Description
Vacuum drying and freeze-drying are techniques used to preserve food by removing moisture.
Technical
Vacuum drying involves removing moisture from food using a vacuum pump at temperatures between 30°C to 50°C and pressures below atmospheric pressure. Freeze-drying, also known as lyophilization, involves freezing food and then reducing the surrounding pressure to allow the frozen water to sublimate directly into a gas, typically at temperatures around -30°C to -50°C.
Science
Primary Reaction
sublimation
Sensory Profile
Aroma ()
preserveddriedearthyconcentratednutty
Wine Analogy
aged sherry
Coffee Analogy
freeze-dried instant coffee
Perfume Analogy
dry hay accord