Freeze dryer and dehydrator
What is the difference between a freeze dryer and a dehydrator? Dryers, spray dryers, vacuum dryers, and freeze dryers are all called dehydrators. The purpose of the dehydrator is to separate the moisture in the product from the product. Any dryer has this function and purpose. Then, as a kind of dryer, freeze dryer also belongs to dehydrator. In this way, dehydration machine is the general name of all drying equipment, and freeze dryer is one of the categories.
The dehydrator includes both a dryer based on the evaporation principle and a freeze dryer based on the sublimation principle. The biggest difference between a dehydrator and a freeze dryer is that the dehydrator is more an evaporative dryer, and the freeze dryer is limited to a sublimation dryer.
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