List a minimum of 3 factors that would control the rate at which the moisture is...
List a minimum of 3 factors that would control the rate at which the moisture is removed (vapor pressure gradient) from a freeze dried product
Homework Answers
1. The rate of heat conduction through the container and the frozen material, both relatively poor thermal conductors, to the drying boundary, while maintaining all of the product below its eutectic temperature.
2. The impeding effect of the increasing depth of dried, porous product above the drying boundary.
3. The temperature and heat capacity of the shelf itself
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