What is the primary physical change that defines the sublimation stage?
Answer
Ice turns directly into vapor without passing through a liquid stage
Sublimation is a phase transition where a substance changes from a solid directly to a gas without entering the liquid state. In the context of this preservation process, this mechanism allows moisture to be removed effectively while maintaining the structural integrity of the food product, as the frozen water (ice) is drawn away as vapor under a deep vacuum.
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