Question

how the liquid does gets separated in.freeze dryer​

Answer 1

Answer:

The material is first frozen so that the liquid gets frozen and is separated as crystals.  Since the contact time is less the flash dryer can be used to dry heat sensitive or easily oxidizable materials.

Answer 2

The liquid gets separated in the freeze dryer by sublimation.

• Freeze drying is a technique used for dehydration at low temperature.
• This is opposite to dehydration through evaporation using heat.
• In this process, dehydration is carried out by lowering the pressure and freezing the product.
• Therefore, in the freeze dryer, first the liquid is made to freeze.
• Then this frozen liquid is removed by sublimation.
• It is a technique mostly used in food preservation.
• Removing the liquid through freeze drying can maintain the nutrition, flavor, and texture of the food.